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From the Jerusalem Catecheses of St. Cyril of Jerusalem:

On the night he was betrayed our Lord Jesus Christ took bread, and when he had given thanks, he broke it and gave it to his disciples and said: “Take, eat: this is my body”. He took the cup, gave thanks and said: “Take, drink: this is my blood”. Since Christ himself has declared the bread to be his body, who can have any further doubt? Since he himself has said quite categorically, This is my blood, who would dare to question it and say that it is not his blood?
Therefore, it is with complete assurance that we receive the bread and wine as the body and blood of Christ. His body is given to us under the symbol of bread, and his blood is given to us under the symbol of wine, in order to make us by receiving them one body and blood with him. Having his body and blood in our members, we become bearers of Christ and sharers, as Saint Peter says, in the divine nature.
Once, when speaking to the Jews, Christ said: Unless you eat my flesh and drink my blood you shall have no life in you. This horrified them and they left him. Not understanding his words in a spiritual way, they thought the Savior wished them to practice cannibalism.
Under the old covenant there was showbread, but it came to an end with the old dispensation to which it belonged. Under the new covenant there is bread from heaven and the cup of salvation. These sanctify both soul and body, the bread being adapted to the sanctification of the body, the Word, to the sanctification of the soul.
Do not, then, regard the eucharistic elements as ordinary bread and wine: they are in fact the body and blood of the Lord, as he himself has declared. Whatever your senses may tell you, be strong in faith.
You have been taught and you are firmly convinced that what looks and tastes like bread and wine is not bread and wine but the body and the blood of Christ. You know also how David referred to this long ago when he sang: Bread gives strength to man’s heart and makes his face shine with the oil of gladness. Strengthen your heart, then, by receiving this bread as spiritual bread, and bring joy to the face of your soul.
May purity of conscience remove the veil from the face of your soul so that be contemplating the glory of the Lord, as in a mirror, you may be transformed from glory to glory in Christ Jesus our Lord. To him be glory for ever and ever. Amen.

Thanks for the link to the Jerusalem Catecheses of St. Cyril of Jerusalem, NYer. I found the following additional reference to the Eucharist within St. Cyril's baptismal mystagogy, in which he explicates the meaning of the phrase 'and all his pomp' in the baptismal vows:

TO THE NEWLY BAPTIZED.
LECTURE XIX.
FIRST LECTURE ON THE MYSTERIES.

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6. Then thou sayest, "And all his pomp." Now the pomp of the devil is the madness of theatres, and horse-races, and hunting, and all such vanity: from which that holy man praying to be delivered says unto God, Turn away mine eyes from beholding vanity. Be not interested in the madness of the theatre, where thou wilt behold the wanton gestures of the players, carried on with mockeries and all unseemliness, and the frantic dancing of effeminate men;—nor in the madness of them who in hunts expose themselves to wild beasts, that they may pamper their miserable appetite; who, to serve their belly with meats, become themselves in reality meat for the belly of untamed beasts; and to speak justly, for the sake of their own god, their belly, they cast away their life headlong in single combats. Shun also horse-races that frantic and soul-subverting spectacle. For all these are the pomp of the devil.
7. Moreover, the things which are hung up at idol festivals, either meat or bread, or other such things polluted by the invocation of the unclean spirits, are reckoned in the pomp of the devil. For as the Bread and Wine of the Eucharist before the invocation of the Holy and Adorable Trinity were simple bread and wine, while after the invocation the Bread becomes the Body of Christ, and the Wine the Blood of Christ, so in like manner such meats belonging to the pomp of Satan, though in their own nature simple, become profane by the invocation of the evil spirit.

I also found the following in Cyril's description of the Anaphora:

LECTURE XXIII.
(ON THE MYSTERIES. V.)
ON THE SACRED LITURGY AND COMMUNION.

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7. Then having sanctified ourselves by these spiritual Hymns, we beseech the merciful God to send forth His Holy Spirit upon the gifts lying before Him; that He may make the Bread the Body of Christ, and the Wine the Blood of Christ; for whatsoever the Holy Ghost has touched, is surely sanctified and changed.
8. Then, after the spiritual sacrifice, the bloodless service, is completed, over that sacrifice of propitiation we entreat God for the common peace of the Churches, for the welfare of the world; for kings; for soldiers and allies; for the sick; for the afflicted; and, in a word, for all who stand in need of succour we all pray and offer this sacrifice.

Check out the following nugget attesting to the early belief in the intercessory prayers of the saints in heaven, as memorialized in the Anaphora:

9. Then we commemorate also those who have fallen asleep before us, first Patriarchs, Prophets, Apostles, Martyrs, that at their prayers and intercessions God would receive our petition. Then on behalf also of the Holy Fathers and Bishops who have fallen asleep before us, and in a word of all who in past years have fallen asleep among us, believing that it will be a very great benefit to the souls, for whom the supplication is put up, while that holy and most awful sacrifice is set forth.

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20. After this ye hear the chanter inviting you with a sacred melody to the communion of the Holy Mysteries, and saying, O taste and see that the Lord is good. Trust not the judgment to thy bodily palate no, but to faith unfaltering; for they who taste are bidden to taste, not bread and wine, but the anti-typical Body and Blood of Christ.

Gamecock, here's the reference to communion in the hand that you mentioned at #10 above (good call):

21. In approaching therefore, come not with thy wrists extended, or thy fingers spread; but make thy left hand a throne for the right, as for that which is to receive a King. And having hollowed thy palm, receive the Body of Christ, saying over it, Amen. So then after having carefully hollowed thine eyes by the touch of the Holy Body, partake of it; giving heed lest thou lose any portion thereof; for whatever thou losest, is evidently a loss to thee as it were from one of thine own members. For tell me, if any one gave thee grains of gold, wouldest thou not hold them with all carefulness, being on thy guard against losing any of them, and suffering loss? Wilt thou not then much more carefully keep watch, that not a crumb fall from thee of what is more precious than gold and precious stones?

Next, communion under both species:

22. Then after thou hast partaken of the Body of Christ, draw near also to the Cup of His Blood; not stretching forth thine hands, but bending, and saying with an air of worship and reverence, Amen, hallow thyself by partaking also of the Blood of Christ. And while the moisture is still upon thy lips, touch it with thine hands, and hallow thine eyes and brow and the other organs of sense. Then wait for the prayer, and give thanks unto God, who hath accounted thee worthy of so great mysteries.
23. Hold fast these traditions undefiled and, keep yourselves free from offence. Sever not yourselves from the Communion; deprive not yourselves, through the pollution of sins, of these Holy and Spiritual Mysteries. And the God of peace sanctify you wholly; and may your spirit, and soul, and body be preserved entire without blame at the coming of our Lord Jesus Christ:—To whom be glory and honour and might, with the Father and the Holy Spirit, now and ever, and world without end. Amen.

Thanks again for the great link, NYer. God bless.