CIT M-500U Micro ATX 500W Power supply,
online deal (maybe some in stores too)
£9.97 so maybe limited stock as will be a clearance line.
Freepost too :)
Limited connectivity but decent spec for under £10 (£20-£30 elsewhere):
4 molex connections, so could always use an adapter if u need extra SATAs, good for basic/budget builds.
Salvage your PC from over-heating with the affordable Colors It M-500U Micro ATX 500w PSU an ultra quiet power supply unit, which incorporates a temperature control fan. Based on 25°C operation, it possesses a 50,000-hour life expectancy.
Thanks to the CiT M-500U Micro ATX 500w PSU's ATX 12V compliancy, this power unit is also suitable for a whole host of motherboards and CPUs.
* Silent PSU with Temperature Control Fan
* ATX 12V Compliant for all kinds of CPU and mainboard
* MTBF 50,000 Hours @ 25 degrees C
* 20+4 Pin Main Connectors: 1
* P4 4-Pin 12V Connectors: 1
* 4-Pin Molex Peripheral Connectors: 4
* SATA Connectors: 1
* Floppy Drive Connectors: 1