iam wondering if these parts will work with each other ASUS M4N75TD - motherboard - ATX - Socket AM3 - nForce 750a SLI - Socket AM3 Cooler Master Elite 330 Black ATX Mid-Tower Case AMD HDZ955FBGMBOX Phenom II X4 955 Black Edition Processor Hitachi 0F10381 Hard Drive
these are the main components
They'll work fine.
Although that is an ancient chipset on that mobo. I would look for an amd based one and not an nvidia one. More specifically if you can afford a 9xx series it would be wise.