| I'll pledge some cash - not sure of the mechanics though. As for a charity The Royal Marsden Hospital in Sutton which specialises in treating cancer patients of all ages, they have their own charity and you can actually specify that it goes to training the nurses if you want. It's a superb place as my dad was in there for a while.
I've always thought about doing something like this, are you doing on a motor or push bike? A freind of mine has done it on both, not at the same time before some wise crack comes out. He's a parkinson's sufferer and he raised a fair amount of cash for that charity.
Best of luckto you. | 
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