I've listened to the great advice given on these forums and I think I'm about settled about what to order now! So here is specs for my £800 gaming pc that will hopefully last me for a few years! I originally was going to plump for an X4 but after some research (google) there is a slight fps advantage when using an i5 processor so I decided to change that. I'm going with the 6850 of which I could crossfire in the future if need be. Here are the specs I have at the moment coming to £799. If everything looks okay to you experts then I'll be ready to order 
Case
COOLERMASTER ELITE 310 BLUE CASE
Processor (CPU)
Intel® Core™i5-760 Quad Core (2.80GHz, 8MB Cache) + Turbo Boost
Motherboard
ASUS® P7P55D-E: USB 3.0, SATA 6.0GB/s, CrossFireX™ SUPPORT
Memory (RAM)
4GB SAMSUNG DDR3 DUAL-DDR3 1333MHz (2 X 2GB)
Graphics Card
1GB ATI RADEON™ HD 6850 PCI EXPRESS - DirectX® 11, Eyefinity 3 Capable
2nd Graphics Card
NONE
3rd Graphics Card
NONE
Memory - 1st Hard Disk
640GB WD CAVIAR GREEN WD6400AARS, SATA 3 Gb/s, 64MB CACHE
2nd Hard Disk
NONE
RAID
NONE
1st DVD/BLU-RAY Drive
24x DUAL LAYER DVD WRITER ±R/±RW/RAM
2nd DVD/BLU-RAY Drive
NONE
Memory Card Reader
INTERNAL 52 IN 1 CARD READER (XD, MS, CF, SD, etc) + 1 x USB 2.0 PORT
Power Supply & Case Cooling
CORSAIR 650W TX SERIES (TX650) 80+ ULTRA QUIET PSU (£76)
Processor Cooling
SUPER QUIET 22dBA TRIPLE COPPER HEATPIPE CPU COOLER (£19)
Sound Card
ONBOARD 6 CHANNEL (5.1) HIGH DEF AUDIO (AS STANDARD)
Network Facilities
ONBOARD 10/100/1000 GIGABIT LAN PORT
USB Options
6 x USB 2.0 PORTS @ BACK PANEL (MIN 2 FRONT PORTS) AS STANDARD
Modem
NONE, I WILL BE USING BROADBAND
Floppy Disk Drive
NONE
Firewire & Video Editing
NONE
TV Card
NONE
Operating System
Genuine Windows 7 Home Premium 64 Bit - inc DVD & Licence (£79)
Office Software
FREE Microsoft® Office Starter 2010 (Limited functionality Word & Excel)
Anti-Virus
BULLGUARD INTERNET SECURITY - FREE 90 DAY TRIAL
Monitor
NONE
2nd Monitor
NONE
DVI-D & HDMI Monitor Cables
NONE
Eyefinity / GeForce 3D Vision
NONE
Keyboard & Mouse
Logitech® Wireless Desktop® MK250 Keyboard and Mouse Combo (£19)
Mouse
NONE
Speakers
NONE
Webcam
NONE
Headsets (VOIP)
NONE
Surge Protection
NONE
Printer
NONE
External Hard Drive
NONE
Home Installation
NONE
Warranty
3 Year Silver Warranty (1 Year Collect & Return, 1 Year Parts, 3 Year Labour) (£5)
Case
COOLERMASTER ELITE 310 BLUE CASE
Processor (CPU)
Intel® Core™i5-760 Quad Core (2.80GHz, 8MB Cache) + Turbo Boost
Motherboard
ASUS® P7P55D-E: USB 3.0, SATA 6.0GB/s, CrossFireX™ SUPPORT
Memory (RAM)
4GB SAMSUNG DDR3 DUAL-DDR3 1333MHz (2 X 2GB)
Graphics Card
1GB ATI RADEON™ HD 6850 PCI EXPRESS - DirectX® 11, Eyefinity 3 Capable
2nd Graphics Card
NONE
3rd Graphics Card
NONE
Memory - 1st Hard Disk
640GB WD CAVIAR GREEN WD6400AARS, SATA 3 Gb/s, 64MB CACHE
2nd Hard Disk
NONE
RAID
NONE
1st DVD/BLU-RAY Drive
24x DUAL LAYER DVD WRITER ±R/±RW/RAM
2nd DVD/BLU-RAY Drive
NONE
Memory Card Reader
INTERNAL 52 IN 1 CARD READER (XD, MS, CF, SD, etc) + 1 x USB 2.0 PORT
Power Supply & Case Cooling
CORSAIR 650W TX SERIES (TX650) 80+ ULTRA QUIET PSU (£76)
Processor Cooling
SUPER QUIET 22dBA TRIPLE COPPER HEATPIPE CPU COOLER (£19)
Sound Card
ONBOARD 6 CHANNEL (5.1) HIGH DEF AUDIO (AS STANDARD)
Network Facilities
ONBOARD 10/100/1000 GIGABIT LAN PORT
USB Options
6 x USB 2.0 PORTS @ BACK PANEL (MIN 2 FRONT PORTS) AS STANDARD
Modem
NONE, I WILL BE USING BROADBAND
Floppy Disk Drive
NONE
Firewire & Video Editing
NONE
TV Card
NONE
Operating System
Genuine Windows 7 Home Premium 64 Bit - inc DVD & Licence (£79)
Office Software
FREE Microsoft® Office Starter 2010 (Limited functionality Word & Excel)
Anti-Virus
BULLGUARD INTERNET SECURITY - FREE 90 DAY TRIAL
Monitor
NONE
2nd Monitor
NONE
DVI-D & HDMI Monitor Cables
NONE
Eyefinity / GeForce 3D Vision
NONE
Keyboard & Mouse
Logitech® Wireless Desktop® MK250 Keyboard and Mouse Combo (£19)
Mouse
NONE
Speakers
NONE
Webcam
NONE
Headsets (VOIP)
NONE
Surge Protection
NONE
Printer
NONE
External Hard Drive
NONE
Home Installation
NONE
Warranty
3 Year Silver Warranty (1 Year Collect & Return, 1 Year Parts, 3 Year Labour) (£5)
