New to pc, help with parts (gaming mostly)

My PC of 11 years old finally took its last life, and Im in the market to build a gaming PC

I'm looking to invest in something that's future proof and also the best bang for the money, I'd say 650$ 

I will most be playing fps games 

I already have: case, keyboard, mouse, hard drive, DVD drive 

I don't know what I want amd or Intel so please help me? Oh and I'll be using Windows 7 or 8

Please excuse me if I didn't follow the guidelines or something, I'm typing on my phone 

 

Thx in advance!

This.

http://pcpartpicker.com/p/IWQR