Stick to a place with JAR-experience,it will be easier to explain the differences between US/UK.
Agree with all of the above.....license-conversion is the easiest...20 min and you're done.Even the Flight Review(mandatory) is no big deal since you need to be told about airspace etc anyway.Britannia still refunds $2 a gallon by the way.1-800-613-0953(toll free) if you're interested.