CD Warehouse is the place that used to be on 183. They still have a location at 183 and 620, one in Round Rock, and one on Airport by Eric's Billiards (used to be ABCD's). You will get screwed on most of your CD's--call some pawn shops and you can probably get about $1 each for them, and still get them back later if you decide. I think that works out to be the average of what the used places give.