hi there 
I am planning on building my very first gaming pc and I want to make sure I am selecting the right stuff, any advice is greatly appreciated.
Approximate Purchase Date: this week
Budget Range: £800
System Usage from Most to Least Important: gaming
Are you buying a monitor: No
Do you need to buy OS: Yes
Preferred Website(s) for Parts: e-bay
Location: England
Overclocking: Yes
SLI or Crossfire: Yes
And Most Importantly, Why Are You Upgrading: I want improved gaming
here is a ist of parts I have selected all from E-Bay
Western Digital 1TB Caviar Green 3.5" Internal Hard Drive SATA -600 64MB 6Gb/s
£51.96
CoolerMaster Hyper 212 EVO CPU Cooler for all Intel / AMD
£28.95
Intel Core i5 3570K 3.4GHz Socket 1155 6MB Cache Retail Boxed Processor
£166.00
LiteOn 24x SATA DVD Re - Writer Internal DVDRW DL - Black OEM
£15.99
Kingston HyperX Beast 8GB (2x4GB) 1600MHz PC3-12800 DDR3 Computer PC RAM Memory
£59.47
CORSAIR TX650 V2 650W ENTHUSIAST SERIES POWER SUPPLY
£81.84
Microsoft Windows 8 64 Bit Operating System English OEM DVD Included WN7-00403
£74.99
Asus P8Z77-V PRO, Intel Z77, S 1155, DDR3, SATA III - 6Gb/s, D-Sub (VGA)/ Display
£158.10
NZXT Phantom 410 Black Performance Mid Tower Case with 2x120mm & 1x140mm Fans US
£70.92
Subtotal (10 items):
£783.16
I will be using my GTX650 graphics card until I have the spare cash to uprgrade it ( yes I know its low end 😛)

I am planning on building my very first gaming pc and I want to make sure I am selecting the right stuff, any advice is greatly appreciated.
Approximate Purchase Date: this week
Budget Range: £800
System Usage from Most to Least Important: gaming
Are you buying a monitor: No
Do you need to buy OS: Yes
Preferred Website(s) for Parts: e-bay
Location: England
Overclocking: Yes
SLI or Crossfire: Yes
And Most Importantly, Why Are You Upgrading: I want improved gaming

here is a ist of parts I have selected all from E-Bay
Western Digital 1TB Caviar Green 3.5" Internal Hard Drive SATA -600 64MB 6Gb/s
£51.96
CoolerMaster Hyper 212 EVO CPU Cooler for all Intel / AMD
£28.95
Intel Core i5 3570K 3.4GHz Socket 1155 6MB Cache Retail Boxed Processor
£166.00
LiteOn 24x SATA DVD Re - Writer Internal DVDRW DL - Black OEM
£15.99
Kingston HyperX Beast 8GB (2x4GB) 1600MHz PC3-12800 DDR3 Computer PC RAM Memory
£59.47
CORSAIR TX650 V2 650W ENTHUSIAST SERIES POWER SUPPLY
£81.84
Microsoft Windows 8 64 Bit Operating System English OEM DVD Included WN7-00403
£74.99
Asus P8Z77-V PRO, Intel Z77, S 1155, DDR3, SATA III - 6Gb/s, D-Sub (VGA)/ Display
£158.10
NZXT Phantom 410 Black Performance Mid Tower Case with 2x120mm & 1x140mm Fans US
£70.92
Subtotal (10 items):
£783.16
I will be using my GTX650 graphics card until I have the spare cash to uprgrade it ( yes I know its low end 😛)