i wouild like to build a gaming pc for £500

Solution
Here's a very powerful rig for the price:

PCPartPicker part list / Price breakdown by merchant

CPU: AMD FX-8320 3.5GHz 8-Core Processor (£97.00 @ Scan.co.uk)
Motherboard: Gigabyte GA-970A-UD3P ATX AM3+ Motherboard (£62.96 @ Amazon UK)
Memory: G.Skill Ripjaws Series 8GB (2 x 4GB) DDR3-1600 Memory (£58.80 @ Kustom PCs)
Storage: Western Digital Caviar Blue 1TB 3.5" 7200RPM Internal Hard Drive (£38.70 @ Aria PC)
Video Card: MSI Radeon R9 280 3GB TWIN FROZR Video Card (£164.70 @ More Computers)
Case: NZXT Source 210 (Black) ATX Mid Tower Case (£30.25 @ Scan.co.uk)
Power Supply: XFX 550W 80+ Bronze Certified ATX Power Supply (£44.11 @ CCL Computers)
Optical Drive: Lite-On iHAS124-14 DVD/CD Writer (£11.09 @ Aria PC)
Total: £507.61
Prices include shipping, taxes, and discounts when available
Generated by PCPartPicker 2014-07-28 21:06 BST+0100
 
Solution

jepulisman

Honorable
Oct 20, 2013
50
0
10,630


^That's a very solid build. I modified a bit so it would fit MY personal taste better. Maybe it'll prove to be better for knightfire98 too :) I changed the motherboard and RAM and added a CPU cooler for more silent operation(hope the 25£ increase in price is ok):

PCPartPicker part list / Price breakdown by merchant

CPU: AMD FX-8320 3.5GHz 8-Core Processor (£97.00 @ Scan.co.uk)
CPU Cooler: Enermax ETS-T40-TB 86.7 CFM CPU Cooler (£24.94 @ Scan.co.uk)
Motherboard: ASRock 970 Extreme3 R2.0 ATX AM3+ Motherboard (£59.65 @ More Computers)
Memory: Kingston Fury Black Series 8GB (2 x 4GB) DDR3-1600 Memory (£60.47 @ Amazon UK)
Storage: Western Digital Caviar Blue 1TB 3.5" 7200RPM Internal Hard Drive (£38.70 @ Aria PC)
Video Card: MSI Radeon R9 280 3GB TWIN FROZR Video Card (£164.70 @ More Computers)
Case: NZXT Source 210 (Black) ATX Mid Tower Case (£30.25 @ Scan.co.uk)
Power Supply: XFX 550W 80+ Bronze Certified ATX Power Supply (£44.11 @ CCL Computers)
Optical Drive: Lite-On iHAS124-14 DVD/CD Writer (£11.09 @ Aria PC)
Total: £530.91
Prices include shipping, taxes, and discounts when available
Generated by PCPartPicker 2014-07-28 21:32 BST+0100