If you buy in the States your warrenty will not be valid in the UK if anyting goes wrong.
Also, it won't give you time to learn how to use the camera before you want "professional results"
Fen .......... My http://www.fenris.co.uk/galleries.htm - My http://fen-oswin.blogspot.com/ - My http://www.flickr.com/photos/fenoswin/sets/
"I never cared for fashion much, amusing little seams and witty little pleats: it was the girls I liked." - David Bailey