got the cash?
If you have the cash then it's easy peasy - stay in UK.
However, current exchange rate and lower costs mean that flying is half the price in USA. Quite a difference when you get to flying a twin - more twin hours for less $$$ - looks good on the CV.
Find a Brit in USA to train you - i.e. JAA school with JAA instructors that have flown in UK. Then you'll be stopped from picking-up some of the bad habits easily developed by talking with US ATC, and flying in US airspace.
Good wx too, of course.