For sale is my Raspberry Pi 25 GBP or nearest offer, contact bs48 at university:
http://www.raspberrypi.org/products/model-b/
I'll throw in a USB power cable and an acrylic plastic case. Hardly used (I have my eyes on the ODROID-XU now). This is the "B" model not the more recent "B+" model, although there is little difference apart from a change in the board layout.
If I have time, I may be able to throw in a Proto-Plate with this (some desoldering from previous project needed)
http://www.bitbang.co.uk/proto-plate_1_1.html