Well, Superfi have it for £270, Playcom for £260.
If that's a stretch though, check out Ebay turntable listings and check out a few there; you might have to collect, some might post, but check out what's local to you. Collection might mean winning bid price, plus petrol and time, but you never know, you might land a good deck for little outlay (Rotel RP830 going for £20 currently - good starter deck and will cane the Ion and their like).
After that, splash out on the Project USB phono box (£85).
If you're prepared to travel and pick up, you could do quite well using Ebay. See what the various independent dealers have to offer too - Steve's Hi-Fi is another good one. You'll pick up something there for a song. To play a song as it were!