My tip to improve your typing speed is to... relax your wrists as much as possible with them in their ideal position having their natural curve from the forearm to the wrist. Another step is to consciously remind myself to focus/place the most pressure--on the two longest fingers (i.e. the middle and ring) and allow the shorter fingers to come to a rest on the corresponding/remaining home row keys. I consciously remind myself to do this until it becomes second nature when I get into the right rhythm. Now I'm not super fast or anything, but with this technique I have gained some speed where I thought there, for me, was no more to be had. It allowed me to primarily jump from 32/35wpm to around 56 currently. I'm happy with this, to me it is a huge gain and leaves the door open for greater speed gain.

When my fingers hurt after too much time on the keyboard, I... wonder, "What's the dealio?" because usually it is my wrists that hurt. Isn't it that way with everyone? Carpel tunnel anyone?

My tip to improve your typing speed is to...occasionally look at the real time display of the letters you are typing and then glance back at the word you are to be typing. This kind of error checking has really improved my speed and over-all accuracy. I did not think I could improve upon my slow speed of 45wpm, but it has happened, Glory to G-d.

When my fingers hurt after too much time on the keyboard, I...smash the keyboard into the monitor and fry that sucka to heck! That'll teach the frriggin' overgrown calculator!