DK - Have a look at Saunders and LAMM. OMM seem to be doing loads of stuff these days (Iceland and France?!). Snowdon isn't the place to learn nav- one route is Llanberis, from the other side you've got the Pyg and Miners from Pen-y-Pas and a bloody easy to spot horseshoe with Llyn Lyydar int he middle. If you can't read that I'd be worried
The bike is bent (not that one, fortunately it was on my road bike) and I'm a bit worse for wear. Luckily I bounce well, and the human body is an incredible piece of engineering. I'm mostly without pain now but have an odd click to my knee when I walk - having an MRI to establish that it's alright and I can return to training in time for IM Switzerland (6 weeks - eek!!).
Fit or not though, I don't think I'd keep up with TJB for 18 miles - that's some cracking running!