Just went instore and found this top spec PSU reduced from £49.99 to £29.99.
Will support high end PCI graphic cards and Quad core Systems.
Quidco available too!
* High effciency 580W power supply
* Supports the latest specifications of ATX12V and EPS12V
* Supports systems with multi-core CPU technologies
* Features ''Super Silent & Ultra Cool'' thermal-control
* 12cm blue LED cooling fan
* Ultra-quiet technology for very low noise operation and optimal cooling design for the gamer (<25dB at 80% load)
* Honeycomb ventilation design ensures maximum airflow
* Duel PCI-Express connectors support multiple high-end GPU graphics cards (SLi)
* Independent output circuitry for each voltage output, overcomes the limitations of traditional combined output designs
* Over-Voltage Protection (OVP)
* Over Power Protection (OPP)
* Short-Circuit Protection (SCP)
1 x Universal 24 pin(20 + 4 pin) Main ATX Power Connector, 1 x 4 pin +12V Power Connector, 4 x 4 pin (for HDD, CD-ROM etc), 1 x Floppy Connector (4 pin), 3 x Serial ATA Power Connector, 2 x 4 pin Molex to 6 pin PCI-Express Adaptor, 1 x 4 Pin Molex to 8(4 + 4) pin +12V Power Adaptor