Cheap Case for Large GPU

I need a case that is under 50$ that can house the 3 slot asus 7970.  I have been looking around I have seen a few I was just wanting to see what you guys would recommend.  I would like it to have a window, but I don't need it if I can get a case with better functionality without one.  Also if possible I would like to avoid full towers.  A mid tower is a big as I can go.

ATX or mATX?



here are some ATX mid towers under 50 bucks.