Thanks for the reply.
I wouldn't leave until I get the required flight time as a Captain, and I know that's 10-12 years down the road.
I have the right to work in the EU, so that's not an issue.
Apparently, I can go direct-entry captain with my FAA ATP, and I have one year to get the JAA, or they'll put me in a program to get it/transfer it. (I'm a little confused on this.)
300-400 euros isn't a big deal to convert. Unless I'm missing something, and it's not a one-time fee....??
Thanks for the time!