What about good keyboard layouts for coders? (Score 1)

Ok, a better question, I think, is what is a good keyboard layout/whatever for coders?

I think I lose a lot of time and mental momentum when I get tripped up typing important keys for coding, namely: _+;:"'`&$!@%|, etc. (no particular order). Many people who type a lot will mostly be keying text, and the punctuation is a very minor part of that... but for those of us who code for a living... Well, I tend to use other characters a lot. I also have to correct myself a lot.

Is there a keyboard layout that would be better suited for this kind of work?

Additionally, is there any sort of keyboard system that is coder-friendly? I looked into it a while ago, and the closest thing I could find was a completely user-definable chord/paddle based keyboard (here), or contoured keyboards ( here), but both seemed lacking for what I do most of the time (as well as pricy).

Does anyone else have any leads? Any thoughts on the matter?

I recently converted my CAPS LOCK key to a control key at work, and I've noticed a huge gain in comfort and usability, and I'd love to find similar gains for general coding and typing.

-Jason

ps. Obviously I could create my own 'coders keyboard layout', but I'd rather have the backing of some serious usage studies on the matter...