I normally use Wiggle, Merlin or CRC.  Generally in that order and depending on price.  I have also used these guys a few times now and they seem pretty fast and cheap:

According to the info included when you signed on for 12:12 the dates are 29th November, 28th December and 31st January.   I am sure it will be good.

Good to hear the course is running well. I hear there were one or two crashes...

 I might head up there for a quick lap tonight.

Nick Evans wrote (see)

I'm going to come and pootle round for 6 hours, should be fun, hopefully it'll be as dry as last year!

 Wow Nick that is a bit of a change, 24 hour solo next year for you at this rate!

 I will be there, it look like the mixed pairs category is beckoning. 

No.  They are only needed if they are over 16.

http://www.gorrick.co.uk/swinley/index.php