It's to bad you can't get your frequencies through tower hobbies.
With the exchange rate and discounts you could get a 7CAF for about £115
I know there are better prices than these in the UK but I got this with a little google search.
Someone else might be able to point you to the best shop.
4EX £124.99 A good Basic 4ch computer radio
http://www.ripmax.com/item.asp?itemi...tegory=060-010
6EXAP £149.99 Well worth the extra £24.. you get 1 more servo and 6 channels so you won't be replacing it if you want to move into something with retracts or dual aleron servos
http://www.ripmax.com/item.asp?itemi...tegory=060-010
7CAF £229.99 My personal favorite but about double your price range.
http://www.ripmax.com/item.asp?itemi...tegory=060-010