if you have money to spend... go with a lian li case.. preferably the v2000 series ( full tower ). also, if you really have the money to spend, try and get a core 2 extreme
, the striker is a good board... what kind ( brand, speed) ram do you have? drop the physics card, all new gpu's carry an onboard physic processors.. grab an 8800 ultra or even a gtx, and you'll be all set. aim for a better power supply.. something 650watt or more, modular cables are a huge plus..