Just thought I would chip in with my experiences.
I've recently passed all the selection at CTC and intend to join one of their courses in the summer. Probably July or August depending upon how much money I can put aside til then.
It's been mentioned a fair bit recently but I thought I would also recommend the book 'getaheadfortheysky dot com'. I got it, read it, absorbed the information and prepared for each stage and got through first time without much stress. It definately helped and was my ace up the sleeve.
Good luck to everyone else that goes through their selection process. It's tough, competitive, good fun (especially the sim!) and bloody worth it should you get offered a place. At least it is in my opinion.
Cheers,
Chilli.