Qwerty: 10 years or thereabouts. Whenever it was that I first used a computer.
I've been using Typefaster to learn for a few weeks, although I haven't been using it every day.
According to http://speedtest.10-fast-fingers.com/, I get about 75-80 standard wpm (or 68-72 of their words) in qwerty. However, I don't type that fast normally, probably about 50 wpm if I'm thinking, or maybe 60-70 if I'm being dictated to. Nearly perfect accuracy, too. Especially when I'm at a normal/lower desk. With colemak right now, I'm highly error-prone, and really slow. Hopefully I should get it in time.
I usually type qwerty with six fingers and only use the pinkies for shift for some reason. Also, my hands fly over the keyboard... even more so if I'm typing fast. With colemak, I'm also learning to touch-type properly, although I'll often hit b with my right index, because it usually seems easier. Some of that has actually fed back into qwerty; I seem to be using my left pinky and ring more. Has anyone else started typing faster or better in qwerty after learning a new layout?
I actually like -ion and -hen, I thought I'd mention it since it seems that new users usually don't. I don't do same finger stuff well, even if there are 1-2 keys in between them (e.g. like).
For learning, I would say IMing people with a layout image is a good way to learn once you're vaguely aware of where the keys are.
hehe is definitely much nicer to type with colemak, for one.
I probably won't be coding in it for a while, though. How long did it take you to re-learn keyboard shortcuts and passwords by the way?
Also, I need a new keyboard (Current: Saitek Eclipse II). I want something British, with an insert key and at least 4 media keys. Still qwerty of course (I play a fair few games). I've heard that the g15 is a good keyboard for both work and play.
(Sorry, I should really see if I have schizophrenia or ADHD or something, such is the disjointedness of this post. My thoughts are clearer. heh)