i'm thinking of getting one as well.
the two best and cheapest places i have seen it will be. www.nexnix.co.uk
and www.ivojo.co.uk
they both do DPC
and have very good after sales.
so i have heard.
I got mine at AV-Sales ... not the cheapest but they'd been very helpful letting my try an HT1000 and then return it when I couldn't tolerate the rainbows so I bought the Z2 from then as a sort of "thank you".
I recently purchased from Ivojo and can honestly say they are excellent to deal with.
Everything leading up to the purchase, and delivery itself was spot on.....others might be swayed by getting it a few quid cheaper...I'd prefer to have peace of mind instead.
i can get you one new for £1300, bought one my self and for fellow member Kane D. Williams, i got mine for a lot less but since demand has outstripped supply the price has gone up drastically.
It has full UK warranty as well and everything is genuine, i would do a pixel check, the 2 i got from him both had no dead pixels, but i can't risk buying it from him and then not being able to sell it.
there is a risk but then again you save 140 quid.