EchoKiloEcho,
I've just returned back to the UK from Florida having done a similar thing - I have a JAA Commercial (no IR yet) and needed to get a FAA CPL ME-IR.
The school I eventually choose, after a lot of research, was Europe-American Aviation based at Naples, Florida.
Quite simply, they were excellent. The standard of instruction (from 1000hr+ instructors), the aircraft (G1000 equipped DA-40 & DA-42), the availability and the way the school is efficiently run, is second to none.
Flight training in Florida gets a bad reputation in Europe, mainly due to the 'JAA' schools out there (rightly so) but I found EAA ( which is just an FAA organisation) to be superb.
PM me if you want more details