Here's another, cheaper (as far as shipping) option, if the unit has access to an Army/Air Force exchange.
http://www.msnbc.msn.com/id/6435603/
Friends and family of military overseas also can send a gift certificate from the Army and Air Force Exchange Service (AAFES), one-shop shops for military personnel worldwide that stock all sort of goods, from licorice sticks to digital cameras to “bug-out” bags. A “bug out” bag is a backpack that service members pack in anticipation of having to change locations at a moment’s notice, explains Judd Anstey, an AAFES public affairs specialist. Soldiers can buy anything they want with the gift certificate but CDs and DVDs have been the most popular, she says.
Sold in denominations of $10 and $20, gift certificates can be redeemed at any AAFES PX (Postage Exchange) or BX (Base Exchange) throughout the world. The AAFES currently operates 51 stores in the “SW Asian theater” or the countries involved in Operations Iraqi and Enduring Freedom (OEF/OIF), including 29 in Iraq, 10 in Kuwait, five in Afghanistan, four in Qatar/UAE/Djibouti, one in Pakistan, one in Kyrgyzstan and one in Uzbekistan.