I'm Dan, from Wiltshire in the UK. I've been hankering after a teardrop for some time and have now decided to have a go at building one myself.
I'm relatively "handy" but not overly experienced with woodwork so this will be a bit of a learning curve - but I love that!
I picked up a trailer this evening to start the project with. It's an old caravan chassis 4x6, really pleased with it as it's coil sprung with dampers. Vs a lot of the cheaper ones I was after were leaf sprung. I paid £35.00 for this which was a bargain!
The first job is to strip it down to metal and get it painted. The bed will extend easily another 2 feet towards the hitch.
Here's a photo, with my pride and joy tow car:

New Trailer by d86cfv, on Flickr
Anyway, fantastic forum! Will get on and read some of the posts about other peoples builds!
Dan