[euccastro]

I've been using a modified Dvorak for about 5 years.

http://news.ycombinator.com/item?id=351137

I had never been a great typist with QWERTY, so while I noticed obvious performance gains after some time, I can't attribute them to the layout switch. I got proficiency faster, but if you are already good at QWERTY this is irrelevant to you.

It did feel more comfortable from very early on, and this I do attribute to intrinsic advantages of Dvorak.

My error rate with parens/brackets/braces used to be high until I put them in matching fingers of the opposite hand, in the numbers row, unshifted. Even though this makes numbers harder to type, it's a net gain since I don't type in many numbers when programming. And I make less mistakes with them too.