(Be gentle - first posting...)
I recently purchased a Samsung GX10 DSLR camera from Currys Digital online when they had their %10 off DSLRs weekend. Unfortunately, the twin lens version was out of stock. However, I managed to find the zoom lens sold separately at PC World Business for a very reasonable £80 delivered - elsewhere around £150. I had to wait for the item for about a week - it was ordered on request - and my credit card was debited at the time of order - but it did arrive and works perfectly!
BTW - I believe PC World Business also operates as:-
The Tech Guys