For the past few days I've been pricing parts on tigerdirect, newegg, mwave, xoxide and others. I decided I'd get an intel Core2Quad core system, either the Q6600 or the Q6800. The video card would be an XFX NVidia Geforce 8800 GTX or GTS. Probably one card for now, maybe another to run SLi later. The motherboard would be an XFX Nfoce 680i SLi motherboard. I'd get 2 Seagate Barracuda 500GB 7200.10 SATA drives. The parts listed are probably the ones that will need cooling (not too sure about the mobo and HDDs but definitely the video card and cpu, I may even consider cooling the RAM). I'm not sure air will be adequate so I was considering water. My question is what would the optimal setup be for cooling something like this? I was considering a CoolMaster case which most of them are a mesh-like surface, good for air cooling but water cooling also uses fans for the radiators so it would be good for either cooling solution. If your answer is air, what's a good fan layout? If your answer is water, what's a good waterblock/reservoir/radiator/pump layout? I've only put effort into attempting to figure out the water possibility. I was considering a 5-1/4 drivebay reservoir connected to a pump then the CPU block, radiator, VGA block, and then the reservoir again. My reasoning for putting the reservoir between the CPU and VGA blocks is I wouldn't want to heat up the video card with water coming from the CPU if the video card isn't under load but the CPU is. Does it make sense to have 2 radiators, one between the CPU and the VGA block and one between the VGA block and the reservoir? What size pump would you suggest? That's a lot of questions. I'm just trying to be well-informed. Cliffs: based on the specs above, would you use water or air to cool it? If air, explain your airflow plan, if water explain the water cooling setup for the reservoir, CPU and VGA waterblocks, radiator(s), and the pump.