I have been heaving and hawing over what i want from my first build, and this is what i've come up with: I just want to see what the more experience rig builders think of these components, and/or if something is blatantly obviously not going to work, please feel free to point it out 
MSI GeForce GTX 480 1536MB GDDR5 PCI-Express Graphics Card with MAFIA 2 £369.98
Intel Core i7 950 3.06GHz (Bloomfield) (Socket LGA1366) - Retail Intel Core i7 950 3.06GHz (Bloomfield) (Socket LGA1366) - Retail £239.99
Coolermaster HAF X Gaming Tower Case - Black (RC-942) Coolermaster HAF X Gaming Tower Case - Black (RC-942) £154.99
Asus P6X58D-E Intel X58 (Socket 1366) DDR3 Motherboard Asus P6X58D-E Intel X58 (Socket 1366) DDR3 Motherboard £149.99
Cooler Master Silent Pro Modular 1000W Power Supply Cooler Master Silent Pro Modular 1000W Power Supply £139.99
Corsair XMS3 6GB (3x2GB) DDR3 16000C9 2000MHz Triple Channel Kit (CMX6GX3M3A2000C9) Corsair XMS3 6GB (3x2GB) DDR3 16000C9 2000MHz Triple Channel Kit (CMX6GX3M3A2000C9) £135.99
(£115.74) £271.98
Crucial RealSSD C300 64GB 2.5" SATA 6Gb/s Solid State Hard Drive (CTFDDAC064MAG-1G1) Crucial RealSSD C300 64GB 2.5" SATA 6Gb/s Solid State Hard Drive (CTFDDAC064MAG-1G1) £111.99
Microsoft Windows 7 Home Premium - Retail (Full Version)(GFC-00025) £105.74
Samsung SpinPoint F3 EcoGreen 2TB SATA-II 32MB Cache - OEM £86.99
Samsung SpinPoint F3 1TB SATA-II 32MB Cache - OEM (HD103SJ)
£96.32
Prolimatech Megahalems Rev B CPU Cooler (Socket 775/1156/1366) £42.98
Sony Optiarc AD-5260S 24x DVD±RW SATA ReWriter (Black) - OEM Sony Optiarc AD-5260S 24x DVD±RW SATA ReWriter (Black) - OEM £15.99 £31.98
Akasa AK-FN058 Apache Black Super Silent 120mm Fan - 4 Pin PWM Akasa AK-FN058 Apache Black Super Silent 120mm Fan - 4 Pin PWM £27.98
Lian Li LT90-4 Braided SATA-II Cable x 4
Lian Li LT90-4 Braided SATA-II Cable x 4 £8.99 £17.98
Akasa SATA-3 100cm Rounded Data Cable Akasa SATA-3 100cm Rounded Data Cable £7.14
Arctic Cooling MX-3 Thermal Compound Arctic Cooling MX-3 Thermal Compound £6.99
Thanks

MSI GeForce GTX 480 1536MB GDDR5 PCI-Express Graphics Card with MAFIA 2 £369.98
Intel Core i7 950 3.06GHz (Bloomfield) (Socket LGA1366) - Retail Intel Core i7 950 3.06GHz (Bloomfield) (Socket LGA1366) - Retail £239.99
Coolermaster HAF X Gaming Tower Case - Black (RC-942) Coolermaster HAF X Gaming Tower Case - Black (RC-942) £154.99
Asus P6X58D-E Intel X58 (Socket 1366) DDR3 Motherboard Asus P6X58D-E Intel X58 (Socket 1366) DDR3 Motherboard £149.99
Cooler Master Silent Pro Modular 1000W Power Supply Cooler Master Silent Pro Modular 1000W Power Supply £139.99
Corsair XMS3 6GB (3x2GB) DDR3 16000C9 2000MHz Triple Channel Kit (CMX6GX3M3A2000C9) Corsair XMS3 6GB (3x2GB) DDR3 16000C9 2000MHz Triple Channel Kit (CMX6GX3M3A2000C9) £135.99
(£115.74) £271.98
Crucial RealSSD C300 64GB 2.5" SATA 6Gb/s Solid State Hard Drive (CTFDDAC064MAG-1G1) Crucial RealSSD C300 64GB 2.5" SATA 6Gb/s Solid State Hard Drive (CTFDDAC064MAG-1G1) £111.99
Microsoft Windows 7 Home Premium - Retail (Full Version)(GFC-00025) £105.74
Samsung SpinPoint F3 EcoGreen 2TB SATA-II 32MB Cache - OEM £86.99
Samsung SpinPoint F3 1TB SATA-II 32MB Cache - OEM (HD103SJ)
£96.32
Prolimatech Megahalems Rev B CPU Cooler (Socket 775/1156/1366) £42.98
Sony Optiarc AD-5260S 24x DVD±RW SATA ReWriter (Black) - OEM Sony Optiarc AD-5260S 24x DVD±RW SATA ReWriter (Black) - OEM £15.99 £31.98
Akasa AK-FN058 Apache Black Super Silent 120mm Fan - 4 Pin PWM Akasa AK-FN058 Apache Black Super Silent 120mm Fan - 4 Pin PWM £27.98
Lian Li LT90-4 Braided SATA-II Cable x 4
Lian Li LT90-4 Braided SATA-II Cable x 4 £8.99 £17.98
Akasa SATA-3 100cm Rounded Data Cable Akasa SATA-3 100cm Rounded Data Cable £7.14
Arctic Cooling MX-3 Thermal Compound Arctic Cooling MX-3 Thermal Compound £6.99
Thanks