Thanks for the advice Mark and Mary, I've read some of Cenk's stuff already on the site, he seems well informed and helpful.
I just want to say a public thanks to Scunner, who has been really patient and answered all my questions before we even get there! Apparently we'll get to meet him as he is showing us some places on the Monday. I just can't wait- I've been scouring the web all day and I should have been doing my planning for work tomorrow, so I'll probably be up all night now or the kids will riot because I'm not prepared!
