Hello, I would advice an AMD Phenom II X2 550 BE with a Gigabyte MA770T-UD3P mobo. It's affordable and if you are lucky (i am sure you are) you'll be able to unlock 2 more CPU. Maybe you'll also be able to OC and run 4 CPU @~3700Mhz, like most of people do. I currently run at 3400 because i don't want to increase the voltage.. I've read that guide to build my latest machine : http://arstechnica.com/hardware/news/2009/07/gaming-guide.ars/2 Excepted than i am stuck @1024 with a Radeon 4850, Haiku fly on it. Happy shopping :)