Funny, I've just re-watched the top gear Vietnam episode.
That, coupled with your (awesome) pics, makes me want to start the planning on my own Vietnam 2 wheeled adventure.
Our guide was telling us that a lot of brits have come over since the airing of that episode to do the same route. They also do the whole "gift giving" thing too - blow up dolls, piniatas, large model ships etc etc. The photos were quite amusing.