That is much easier than FAA to JAA. Any school will do. I worked at the tiniest dirtiest flight school in the middle of the S Cali desert and had many successful conversion students. I would not worry too much about finding the right school. Just go to what ever city you want to see and call up the local FBO. Prices are competitve everywhere, +/- a few hundred dollars.
Relax, enjoy the flying, and good luck!
BBB