Processor: AMD Phenom II X4 965 Black 3.4GHz Quad-Core Processor
RAM: Corsair 8GB DDR3 1600MHz XMS3 Memory)
Power supply: X-Power 700W PSU (any similarly priced, better and reliable suggestions would be highly appreciated I want to keep the price of the power supply around £40 or lower). I'm not sure if I really need a 700W supply.
Samsung SH-224BB SATA DVD Write Optical Drive
Case: CiT Vantage Gaming Case Black HD Audio Black Interior 4 Fans Card Reader No PSU
Hard drive: WD 1TB Green Desktop Drive (not 100% sure)
As stated I want to keep the cost of the power supply below £40 but I want it to be reliable and also compatible with my system of course. Here's another power supply I was considering: Powercool 650W 80plus Certified Efficiency PSU - 4x SATA 2x PCI-E.