Comet have the Proline CD365USB (CD + MP3 + radio) player on ex-display clearance at £19.99 (probably only one per store). It's the same as their CD365 but with a front USB port that takes a USB memory stick or MP3 player,
The link is to the CD365 which does not have the USB port but is otherwise the same. The front USB port is a little vulerable to knock if you have a USB memory stick in it - worth taking care. Not a top-of-line make but exellent value for the specification and doesn't sound bad either. I've already got the one from Milton Keynes......
*** instore only - lilkely only to have one per store ***