Hi
I was actually going to miss the PPL bit out and remove the "must have JAR lic with you" bit on my current FAA lic by doing there CPL.
You can do a CPL and FI ratings for the same price as the FI rating in the UK and you can still fly IFR if you need to on your UK license. I will play it by ear for a few months.
Another info point
http://www.faa.gov
MJ