120mm fans in the front and back help the Orb maintain that cool mood! Yahoo! Job well done! Final Specs for upgrade (in case anyone is interested) AMD Athlon 64 3800+, 2GB DDR400 Memory, 200GB, 250GB, 200GB SATA drives, GeCube ATI Radeon 1600XT 256MB DDR3, Thermaltake Blue Orb2, 120mm Fans