The simplest thing may well be just to get a JAA licence issued in the UK then you can use it in most of Europe without too much hassle. You can keep your original UK licence as well - the licence number stays the same - and certificates of revalidation can be slipped into whichever one you are using at the time. The CAA form you need is here:
http://www.caa.co.uk/application.asp...=detail&id=452
I'm not sure of the cost but I think it's around £100 to £150