I don't know a single thing about cameras really. Nor do I know if this is cheap, but...
A quick Google search showed these as the cheapest at £331.99 and £344.95 respectively -
http://www.eglobalcentral.co.uk/cano...LrIaAkaX8P8HAQ
http://www.simplyelectronics.net/mai...LcoaAvaP8P8HAQ
Check reviews for both companies before purchasing also.