I use a Raidmax case with two 80mm intake fans in the side blowing onto the Mobo and HD area, and then it has one 80mm output from the Power supply, and I added a 60mm outtake fan across the CPU.
This one -- Raidmax Black 10-Bay ATX Mid-Tower Case w/ Front USB 2.0, Model 289WBP(Black) - Retail
My CPU heatsink is one recommended for the processor 80mm and I lapped it down to a mirror polish and used arctic silver 3. Something like a Thermaltake ''Volcano 10+'' Copper CPU Cooler for AMD AthlonXP up to 3400+
This one -- Raidmax Black 10-Bay ATX Mid-Tower Case w/ Front USB 2.0, Model 289WBP(Black) - Retail
My CPU heatsink is one recommended for the processor 80mm and I lapped it down to a mirror polish and used arctic silver 3. Something like a Thermaltake ''Volcano 10+'' Copper CPU Cooler for AMD AthlonXP up to 3400+