Chenbro Net Series (Cube) cases aren't that bad either.
Some of the biggest pluses are: their slide out drive rails for easily replacing any drives in the 5 1/4" drive bays, separate compartments separating the sides where the drives are from the side housing the motherboard, abundance of cooling options, small overall demension but not interior space and so on. I got mine from Jim over at Coolcases.Com.