Oulton Park is £159 for the 16-Sep (always seems to be slightly more expensive than some of the other tracks - I'm sure it'll be worth it!) go to;
http://www.motorsportvision.co.uk/trackdays/event-details.asp?ProductID=4223
You can book a session with an instructor for an extra 25 quid if you want.
They're also doing an Aprilia Track day at Oulton on 13-August, :thumbup for the same price, where;
"In addition to the trackday with your own bike, Aprilia are bringing along a selection of their 2008 bikes for you to try on the track including:
RSV 1000 R Factory, RSV 1000 R standard, Tuono 1000 Factory, Tuono 1000, Shiver 750, and Dorsoduro 750.
All at no extra charge! These will be available on a first come fist served basis and at the discretion of our instructors." :doug
How good does that sound? I would have gone for this one myself, but I'll be away sunning myself at the time.
Before you ask, no I don't work for Motor Sport Vision or Oulton Park :nana