I haven't done anything for charity in a while, I've never abseiled before (excluding about 6 meters as a kid) but I'd quite like to join you purely as it's the power station which I'd like a memory of before it gets demolished! PM me the details, I'm happy for the money I raise to go to the same charity - the father of the bride for the stag do I cracked my head open on recently is in a wheel chair because of a stroke. Besides, abseiling can't be as bad as being a passenger in your car surely!
p.s: I sat here for 5 minutes before getting the courage to hit submit on this message...