What do i build?! £450/$690

Its coming up to the holiday season and ive sold my console and i have £450/$690 aprox. To spend on a build. I would really like something that is capable of gaming and that is decent to upgrade in the future, could anyone possibly help me with a breif parts list in my price range that is good?!

thanks alot, Matt.

http://www.youtube.com/watch?v=uyNtNDbNywk&list=PL441D9BF9F40D0E5E&index=5

  • CPU: AMD Phenom II X4 965 Black 3.4GHz Quad-Core Processor
  • Motherboard: Gigabyte GA-990FXA-UD3 ATX  AM3+ Motherboard 
  • Memory: Mushkin Redline 8GB (2 x 4GB) DDR3-1866 Memory
  • Storage: Kingston HyperX 3K 120GB 2.5" Solid State Disk
  • Video Card: HIS Radeon HD 7870 2GB Video Card
  • Case: NZXT Source 210 Elite (Black) ATX Mid Tower Case
  • Power Supply: NZXT HALE82 650W 80 PLUS Bronze Certified ATX12V / EPS12V Power Supply
  • Optical Drive: Samsung SH-222BB/BEBE DVD/CD Writer

Do you need a monitor too?

Preferably yes

with this build you should get a monitor as well for under $700 

http://pcpartpicker.com/p/rQfd