I went to Sprint Motorsport, just off the Parkway in Sheffield (near Makro) for a stag do not long back and it was pretty good. http://www.sprintmotorsport.co.uk/
Thirded It's brilliant that one at Wakey, theres a really long straight though followed by a tight chicane so be careful of people shunting you from behind, i couldn't sit down for more than 10 minutes on the coach down to Plymouth a couple of days after
go here in warrington and then round liverpool for the night.... its his 40th make the most of it http://www.speedkarting.co.uk/ track is on three levels and is fantastic better than any around here