AMD Athlon II X3 450 , Asus MotherBoard - M4A78LT-M LE,3gb ddr3 ram and 1gb 9500gt ... i chose this mobo coz it has hybrid crossfire x which also enables onboard graphics with my discrete card so i can get higher frame rates my doubt is whether i can use this system config for 3yrs and if required i will upgrade the ram and graph card ..i think this will be cheap than intel dual core e5700 and asus mobo and 3gb ram