From a US retailer Boris. PC Connection Express to be exact. I asked a friend to buy it for me and ship it to UK (in the original box). The interval from my friend's receipt and now is more than 15 days, thus per warranty policy of PC Connection Express, after 15 days I will have to resort to Entourage Systems warranty. That's why I did.

Buying it from the US was supposed to be cheaper even if you factor in the shipping cost and the UK VAT since the device is exempt from UK import duty. But it turned out, I'm blowing away whatever savings I had on the shipping charges for the return to US.