Not quite a true SLR, but a small 4/3 one with decent image quality and the potential to change lenses.
I ordered this having considered the Olympus PEN E-P1. This one does not cost over 700 pounds, comes with a view finder, a flash and a flip out screen.
I think it is a good deal, I have been looking at these kind of things for a while now and this offer pushed me over the spending edge.
Voucher code: G1SLR50
Topcashback brings the cost down to £423.63
Free delivery can be arranged by picking slots, it is also possible to collect in store if you can find one. There was one in Manchester last time I looked.