Wagger, I'm sorry to read of your short term challenge, and I empathise with your situation.
That said, I want you to adopt the attitude that this personal challenge might replace the ATB in a day challenge for you, but everyone here has absolutely no doubt that you can accept it, and beat it.
Set yourself a goal to beat it and be up for the next challenge ... perhaps the Grape Escapade - Taste the Hunter Valley in April 2008.
Life likes to kick the crap out of us from time-to-time, knock us down ... but you just have to be determined to pick yourself up, dust yourself off, then get on with the job of enjoying yourself.
Life is too short to bother with idiots