if you don't get Hugh Hewitt, try his website. He's a law professor from California who worked in Reagan Justice, for Nixon after that. Has monthly Shakespeare with David Allen White of Naval Academy, and is big on blogs...informative and funny...and capable debater without taking things too seriously
I wish I could get more commentaries--we only have 2 talk stations out here in the W. Tx. boonies and I feel lucky to get Hannity, Rush, and Tony Snow!