I'd like to second the World Nomads suggestion. For my own purposes I've found them to be considerably more reasonable than any of the other options I've checked.
One proviso though, you should check age limits for your country. For myself as a Canadian I can get coverage up to age 61 so I don't know what happens in 2011 when I hit that age.
Yes, please do let us know how your trip goes. I love to live vicariously through the travels of others.
