I just wanna toss in here that even though ATX is the most popular form factor, BTX should have a serious look taken at it. It's a very considerable form factor, especially for people building their own PC. BTX has better airflow and structural support for the mobo. The whole computer fundamentally depends on the form factor. But yeah, you can't really go wrong with ATX. Just try to keep the options open while you decide. And I realize I'm not really just saying this to Crimson because he's already cooking.