I am in US training at the moment, and it is costing a very similar total amount with flights etc. My advice would be to do your PPL in the UK, sit your JAA CPL exams and then go out to the US and do their IR and CPL as part of your hour building. That way you get used to UK ATC, navigation and weather, before coming over here. Otherwise when you go back to the UK to do your CPL, your Nav, ATC etc will be nowhere near the standard needed. That is how i have done it anyway, if you want any advice, or some pointers as to the better schools, and JAA exam stuff the just PM me.