hi, i was looking forward to build a new pc, i now have Phenom II X4 955, with 4GB Ram, and no video card. i am buying a Phenom II X6 1075T, 2x4GB RAM, Gigabyte HD 7750, ASUS M4N75TD. is this system ok for me to play games on 720p for some 3 years on max settings. I have a 19" monitor with 1366x768 resolution. I didnt get any better mobo for my budget with 2 pcie slots. i am looking forward to buy another HD7750 in future to run in crossfire. my budget is $130 for graphics card. i have 550W SMPS, wat graphics card should i buy?