Thanks guys,
Obviously when I say 'look for a job in the US' I don't mean airline job, just a CFI job due to the hours I could log thanks to the weather. I hear that some FI's in the UK full time are only clocking 500hrs per year whereas in the states 100hrs per month is not unheard of.
I might just get the FAA PPL and then leave it at that, I just thought the FAA CPL/IR might come in handy when applying to the BizJet sector due to the amount of N Reg AC's they operate. With airline jobs being a little scarce at the moment and might be for some time I want my plan to be as safe as possible.
With so many US schools advertising for CFI jobs I just had the impression they had a slight shortage of CFI 'resumes' on the desk ... guess I jumped the gun on that thought.
The whole process of going to the US for any length of time would depend on wheather or not I can rent out my apartment in 2 years time, so training with a UK school does have it's advantages