I've got a fixie and it's a lot of fun. Having ridden pretty much only trials most of my life the simplicity of them really appeals to me over a bike with gears/brakes e.t.c that you have to maintain.
The video was cool. I think he kinda ruined the look with whatever finish he painted on them but I love the idea of been able to craft your own stuff out of wood.
I hated wood class at high school though so I think I'll stick with good old metal!