I just got a Chieftec Ultra Dragon and I love it. Lots of room inside, removable hardrive bays, and improved cooling a fair amount over my Aspire X-Dreamer II case. With the computer in my sig at stock vcore I get idle temps of ~25C and load of ~36C. That's with the cpu fan spinning at 800rpm. I need to figure out better cooling for my cards but they still aren't bad at 62C top/55C bottom (idle). The bottom card is more accurate considering the driver temp bug affecting the top card.
The case runs around $70-100 depeding on the rebates going on. Here is a
link to the site where I got mine.