[font=trebuchet ms]I've been typing for about five years, and last I checked (somewhere around a year ago, I think) I had an average of 90wpms. I use a Qwerty keyboard and can't imagine using a Dvorak keyboard. The Qwerty keyboard is, in my opinion, more efficient because of the placement of the keys. If you actually learn how to type, you'll find that after a few months it becomes second-nature, and your typing speed will increase. I suggest you take the time (yes, by that I do mean "hours") to learn to type properly on a Qwerty keyboard. Usually some simple software such as Mavis Beacon Teaches Typing or something similar is sufficient. Really, all you need to learn is finger placement on the keyboard and where to move which fingers to hit specific keys. Once you have that down, it just takes a bit of practice to gain speed.
My older brother and my father never learned to type properly. They use the first two fingers of each hand mostly, and their speed is probably as fast as yours. Had either of them learned to type, there would be a substantial difference in the amount of time it takes them to get something done on the computer.
In any case, my keyboard is attached to my laptop. [/font]