Just stick to Zalman or a ninjai for cpu cooling and any decently insulated case such as the P180 would take care of the gpu fan. Main concern of yours is the psu I reckon. Antec do a 500w Fanless design psu. I'm planning on getting it. People have written their concerns about 500w not being enough. :/ I'm no electrician but I am an engineer and have an idea of how much that is. I wish components would list their power consumption more clearly. It's a pain trying to find it for some of them.