Product Name Qty Price Line Total
OcUK Value ATI Radeon HD 4850 1024MB GDDR3 TV-Out/Dual DVI/HDMI (PCI-Express) - Retail OcUK Value ATI Radeon HD 4850 1024MB GDDR3 TV-Out/Dual DVI/HDMI (PCI-Express) - Retail £77.99
(£67.82) £77.99
(£67.82)
Kingston HyperX 4GB (2x2GB) DDR2 8500C5 1066MHz Dual Channel Kingston HyperX 4GB (2x2GB) DDR2 8500C5 1066MHz Dual Channel £75.98
(£66.07) £75.98
(£66.07)
AMD Phenom II X2 Dual Core 550 3.10GHz Black Edition (Socket AM3) - Retail + Colin McRae Dirt 2 Full Game AMD Phenom II X2 Dual Core 550 3.10GHz Black Edition (Socket AM3) - Retail + Colin McRae Dirt 2 Full Game £69.99
(£60.86) £69.99
(£60.86)
Asus M4A785D-M Pro AMD 785G (Socket AM3) PCI-Express DDR2 Motherboard Asus M4A785D-M Pro AMD 785G (Socket AM3) PCI-Express DDR2 Motherboard £58.98
(£51.29) £58.98
(£51.29)
Corsair CX 400W ATX Power Supply (CMPSU-400CXUK) Corsair CX 400W ATX Power Supply (CMPSU-400CXUK) £39.99
(£34.77) £39.99
(£34.77)
Samsung SpinPoint F1 320GB SATA-II 16MB Cache - OEM (HD322HJ) Samsung SpinPoint F1 320GB SATA-II 16MB Cache - OEM (HD322HJ) £34.99
(£30.43) £34.99
(£30.43)
Coolermaster Elite 335 Case - Black Coolermaster Elite 335 Case - Black £30.99
(£26.95) £30.99
(£26.95)
Sub Total : £338.19
Shipping cost assumes delivery to UK Mainland with:
DPD Next Day Parcel
(This can be changed during checkout) Shipping : £11.25
VAT is being charged at 15% VAT : £52.42
Total : £401.86
Plenty for all your needs, and can do decent gaming as well

.
You could eventually save 30-40quid by getting cheaper GPU like this:
http://www.overclockers.co.uk/showproduct.php?prodid=GX-184-SP