Case + PSU for $200 could get you something really nice. Actually, you can just pick up an Antec Sonata (includes an Antec True380, now IIRC with 24A on the 12V rail) for $115. If you want to spend more, you can consider a Lian Li case and a PSU from Fortron/FSP Group, Seasonic, Antec, Enermax, or OCZ, or even pair it with that same True380 in the Sonata. (I think it was on EndPCNoise.com that someone on here pointed out a deal on that unit for $35.)