This is a rough outline of a page, The Dvorak Zine is probably much more useful to you.
In the summer of 2005 I stopped using the QWERTY keyboard layout and started using Dvorak. If you search Google for Dvorak you'll get lots of results, probably the most useful one is The Dvorak Zine. When I used Qwerty I didn't type correctly, I used the wrong fingers for each key and ended up looking at the keyboard for most of the time. Since I decided to switch to Dvorak I learnt to touchtype properly, I no longer look at the keyboard (even for the numbers and symbols). Forgetting anything about typing speed (I can type at about 70wpm, but I can't very often think that fast so it doesn't matter), typing using Dvorak is simply more comfortable. There's much less movement of fingers, it's just nicer. I've never looked back.
The 'L' key seemed to be in the wrong place, and 'I' and 'U' could be switched (on Dvorak).
I considered switching lots of keys round and trying the resulting layouts. I looked at what I typed at Linux command lines and found that the most common triple I use is '.uk' -- but this is mostly with tab-completion, so it's not really relevant! Other common sequences were 'att', 'mat', 'tt.', 'ent', 'the', 'cat', 'bli' -- several from matt.blissett.me.uk then! I thought I typed 'l' a lot, but my shell history file (of over 7000 lines of commands I've used) contains more 'c' and 'r' characters. The order was etsarico-mld.np/u|hgb....
Moving 'crl' wasn't a help, I tried 'rlc' but this messed up things like 'tr' and 'rt', and combinations with 'mwv'. I switched 'u' and 'i', but after a couple of days I put it back, it's not really a big deal and I'm used to it now, and whilst Dvorak is unusual it is at least a standard layout I can apply to any PC I find, if I switch 'u' and 'i' I won't be able to do this as easily.
So, in conclusion, other than the main point of this page ("the Dvorak layout is pleasant to use") this was a waste of time.