TheJake: Is it really that crazy?! I thought it sounded achievable-ish...!
Well I'd like to do it as cheaply as possible yet also leave room for spontaneity! I was thinking greyhounds across Canada and the US (or maybe rent a car - so could sleep in that or cheap hostels/motels) then buses and what not down through central am down to SA and then buses around there and a flight back to the UK (home). Planning to take a year of spanish lessons before going to help make more of it.
FYI, i'm a 26yr old male, want to do the trip solo, meeting as many weird and wonderful people along the way as possible