Maybe not much of a deal as it's pre-owned but I picked up PlayTV for the PS (pre-owned) for £19.99.
The box was in good condition and everything works fine. Seems cheeper than CEX.
The store I got mine from was Kingston. They must have had a few as the guy went upstairs to grab one and put the box back on the shelf.
As with all my deals, I hope it helps someone.