Re: Are these all the parts I need to run a pc
I'd get the 4870 Personally,but that's just me.Your coolling will be fine on that system unless you plan to overclock.
And yeah,When you want to improve game performance,the most integral part,is the graphics card.
Desktop:BitFenix Survivor~Gigabyte GA-P67A-UD3R~ i7 2600K @ 4hz~AMD 6870 1GB~12gb Team Elite DDR3 1333~3xWD In RAID5~W7 Ult
Laptop:Alienware M11x~ i7-2637M 1.7GHz~16GB 1333MHz DDR3~GeForce GT 540M~W7 Ult