Ive recently purchased the Black Shark Full Tower case from Thermaltake. What can I say! This case has single handedly solved a major overheating problem i had, especially with my BFG 6800 GT. With my prior factory case i was experiencing major artifact problems with my GPU temps gettin to 72 degress at idle and 81 degrees! under load, my CPU temp sitting at about 36 degress under idle and 45 degress under load. Changing to the shark I now get GPU temps of 58 degrees at idle and 62 degrees under load, NO ARTIFACTS YAY!!!!! CPU has come way down to 25 degrees at idle and 32 degrees under load.
No other cooling mechanisms are in use. Heres the link