This is all pretty impressive for just organic growth via search engine.
Here is my story. I don't remember how or why I got into weird keyboards, but I started with a TypeMatrix (the old one). It was alright, but for some reason (again, I don't remember), I upgraded to a Kinesis contoured. I liked it so much that I got another one for work, and I'm still using those two. I've played around with ripping keyboards apart and have contemplated building a custom one, but have been intimidated by the work required.
Lately I've been thinking about it again, after discovering Ponoko (laser cutting service) and making some stuff with it. I'm not sure if laser cutting is a very good way to make a keyboard, but it's a possibility at least. 3D printing is another option, but my design skills are thus far very firmly lodged in the 2D world (Inkscape).
The laser cutting project I've been working on is a Mini-ITX computer case, which you can check out (well, its progress)
here. I actually just got the printed prototype #2 delivered to my house today, but I'm still at work so I won't get to play with it until a few hours from now.
Here is my work keyboard:
http://farm5.static.flickr.com/4140/4775131733_72b2b471ce_z.jpgI have switched some of the thumb keycaps because the stock ones have annoying ridges on the edges that just don't feel very good. The replacements are totally flat (and some I sanded to give them more rounded edges). Most of the thumb keys are remapped too. On the left are backspace, shift, control and alt, and on the right are the obviously labeled keys plus enter and space. I actually wish I could control more keys with my thumbs, and that's one of the things I'd do if I made a keyboard.