Video diary?
Stan - an idea for more fund-raising. Make a video diary of your trip and then sell that raise money. You could either sell it through your existing JustGiving page for a set amount, or via Ebay and Missionfish, which is what I'm using of the GW1 video sale. The only downside of Ebay is the PayPal charges, which are £0.61 for a £12.50 transaction.