1st custom build

[dfg654654]

I'm going to build my 1st custom pc. could someone put together a gaming pc for me for MAX 750$ ?
I have a case and optical drives. My OS is Vista Ultimate x64.
CPU brand is Intel (Core 2 Duo or Quad Core)
RAM brand is Kingston or Corsair.
GPU brand is NVIDIA.
Any help is much appreciated.

 

[CaptainAwesom]

1. What exactly will you be using this computer for?
2. Do you need a mouse?
3. Do you need a keyboard?
4. Do you need a moniter?
5. Do you need speakers?
6. What case do you have?
7. How do your optical drives connect to the motherboard?