directron has some good deals, I also found some good cases on newegg for dirt cheap. I just bought
this case for $40 bucks, and I'm impressed with the product I got for that price.
Newegg also has a lot of nice cheap cases that also come with power supplies, just browse through their ATX category going from lowest to highest price, i'm sure you'll find something you'll like.
http://www.newegg.com/app/Viewproduc...tion=&srchFor=