Archer4, this is definitely something that I will consider as I would likely want to transfer back to an EASA licence at some stage.
Hawker400, not sounding like such an easy task. That's good information to have though, I'm just considering different options at the minute nut I don't want to do anything that will severely limit me and cost me much more money. As for the medical, It sounds like a lot of hassle and I wouldn't want to let it lapse.