Welcome to SaleHoo! :) That has been one of the most requested product line from new members from UK. And the truth is you will be dealing with format issues (PAL vs NTSC) and VAT to be paid if you source them from outside of UK.
I searched for one within UK and found this company looking legit in every way, I will be vouching to add them in our directory - Link hidden: Login to view The company has been online since 2003 and I have encountered several positive feedback about their service.
If prices will be not so great, let me know and I'll try to look for other sources.
Let us know how you get on. :) Cheers!