Please Recommend me £600 Gaming Rig

Approximate Purchase Date: In 2 weeks time.

Budget Range: £500 - £650

System Usage from Most to Least Important: Gaming, Photo editing software, visual studio 2010 and Web browsing.

Are you buying a monitor: No



Parts to Upgrade:
- Case (A cheap case that can fit everthing in please.)  
- Power Supply
- CPU
- Motherboard
- Cooler
- RAM
- Hard Drive
- Graphics Card

Buy OS: Yes, Windows 8 Pro.

Preferred Website(s) for Parts: The ones with free UK shipping.  

Location: N/A but in North Yorkshire.

Parts Preferences: You decide.  

Overclocking: Maybe, but not this time around.

SLI or Crossfire: No

Monitor Resolution: 1440x900

Additional Comments: I would like a quiet PC and a gaming rig that can run most of the games in Ultra/Max, thanks. The following software and games that I am going to be using and playing are:

Software
- Microsoft Office 2010
- Visual Studio 2010
- Photoshop
- Illustrator
- Steam

Games
- World of Warplanes
- World of Tanks
- PlanetSide 2
- Firefall
- RaiderZ
- BF3
- Borderland 1 & 2
- XCOM Enemy Unknown
- Arma 2 / 3 (Day Z)
- War Z

Why am I Upgrading: To play the listed games and to run photoshop, and illustrator.