I'm planning a HTPC for use as a DVR, in 3d rendering and occasional gaming. For hardware I was thinking Quad core Intel, midde of the line Nvidia for graphics (better Linux support I assume), 8 GB of ram, 2xHDD and a dvd drive. I'm cheap so nothing particularly high end. It's been a long time since I last build a PC, so I have some cooling questions. From all the modding articles it is hard to tell what level of cooling is actually required and what is just for the show, or for high end gaming, or just legacy form the early 2000 super hot Athlons. The case I'm modding for this thing is just large enough for an ATX board and puts power supply about 10cm above the CPU. I thought I would use something like this heatsink. Since the PSU fan will be so close, is there any chance of leaving out the heatsink fan? Any recommendations for CPU heatsink in this type of configuration. How much air intake/output I should have for these parts in in a smallish case? I won't be doing any over-clocking, and would like to have just the necessary level of fan noise.