Digital Rev are sellers on ebay UK, and have a UK agent and UK phone number. I've just looked at one of their ebay listings, and it looks like they've put a lot of effort in to showing themselves as a viable supplier to the UK. I'd be tempted to give them a go personally, but that's just me
EDIT - Second thoughts, I read in their small print that they're not responsible for import tax costs. I then went here:
http://www.dutycalculator.com and calculated the tax if I were to be hit with it, and got this:
Total customs value: £1000.00
- Duty: £67.00
- VAT: £213.40
Total import duty & taxes due: £280.40
Total landed cost: £1280.40
Harsh :\