Kev, Steve, Mike - Thanks for all your advice.
I have taken all your points on board but i'm still wanting to do a uk track i am familiar with, so i'm swaying towards the novice day at donington. I've done plenty of reading and know to build my speed progressivly, be aware of other vehicles, pre-vehicle checks and to warm up/warm down etc.. but I will be getting an instructor to assist me with the first few sessions for sure and i'm just going to build from there.
I'm not planning on pushing my car so much as to go near any armco's so hopefully i wont be finding out how much they hurt. I'm really looking to learn how to be smoother, realise the potential of a RWD car as this is my first and, to get a taste for trackdays.