Comet have the HP PSC 1410 Multifunctional printer for sale at the moment for £39.28. This price includes free delivery! Plus you can get 3.5% if you go through quidco.
It's not the best printer in the world, the cartridges are small also, BUT, as a cheap run of the mill printer, it's better than the offers from Lexmark and Dell etc. Also excellent if you don't do many prints but would like to be able to photocopy from time to time.