Future,
To get the type rating put on your JAR licence in the UK you will need:
1. 500hrs on type,
2. a sim check with a JAA examiner in a JAA approved sim,
3. a current JAA Class One medical,
4. proof of completing an approved technical ground school course and
passing a technical exam on the aircraft type,
Then pop along to Aviation House at LGW, sit around for a few hours and they will do it for you. I think they charged me 100 quid for it, but can't be sure.