UK dealer, Jessops, has finished taking pre-orders on the NEX-7 and are now able to supply from stock. Supplies of the camera suffered a series of delays after the flooding in Vietnam, where the 24MP camera is manufactured. I've just reviewed the NEX-7 for Hotshoe International and found it incredibly accomplished. In my opinion it's the best stills/video camera Sony has made, and I hope to have a in-depth review on this site, in due course.
UPDATE: Please note, the NEX-7 is region specific and means the PAL versions record 1080/50p/50i/25p only, NTSC versions capture 1080/60p/60i/24p. It's a limitation, likely based on price, but not necessarily a deal-breaker.
To buy from Jessops, please follow the link here.