Depending on what line you are taking for your training ie is this for pleasure or are you looking to complete a Professional course eventually.
If you are looking to complete your PPL and take a break living in a JAA member state then complete the JAA PPL. If you are looking to complete a full Professional programme all the way through in the US then NAC complete the FAA PPL as this is cheaper and allows you to start accumulating P1 immediately.
At the end of the day all you need is an ICAO PPL to enter the JAA ATPL exams and will end up with a JAA CPL whether you start with a JAA or FAA PPL.
For either PPL you can look at the following:
naples-air-center.com/jaa_ppl_with_accom
http://naples-air-center.com/faa_course.htm
Please pm me for more info or email direct from the web site.
Nikki