You don't mention what you do for a living, but have you thought about
traveling to the States, particularly Florida or Arizona, and doing at least
some of it there. This may not be possible (or attractive) for foreign
nationals after September 11th, but I do know how pricey it can get in the
UK. Also, if you are really busy it may be impossible for you to get away
for any meaningful length of time. If I lived there, I would at least do a
cost analysis of doing it overseas. It seems at least somewhat possible
that you would save money.