My renewed oldskool steel-based Chieftec DG case:

Inside:
E6700 L628A
eVGA 680i LT SLI @ full SLI
4x512MB GoodRAM Pro 800C5
Sapphire Radeon X1950XT - downvolted & overclocked, RAM timings tightened
Cooling -> CPU: Scythe Infinity/Mugen, NB: Thermalright HR-05, GPU: Thermaltake Volcano 12+
LC-Power LC6550 v2.0 (<- bang for a buck 35€ PSU handles C2D @ 4.6GHz on SS with OC'ed VGA card with no problems, just runs hot wouldn't hook it up with SLI card though )