I'm starting to use Quicksilver, although very slowly. I'm not sure if I understand fully how to use it, but right now I'm just launching applications with it. I don't really know how much quicker it is than pointing at things with a mouse, but anyway, I should give it a chance.
Speaking of computer mice, I bought a mouspad for my Apple Optical Mouse, and it's not really good. You might be wondering why I'm using a mousepad in this day and age, but I am. I guess because the Apple mouse is a bit big, there isn't enough room on the pad to move around right. Also (and more importantly), there is a wrist rest with this thing, and the rest is way too high. My poor wrist is already hurting.
I've seen that you are supposed to move a mouse with your arm rather than just your wrist, so the wrist rest isn't going to help me to learn how to properly move a mouse, and it'll probably put out my shoulder in the process.
BTW, you can get quicksilver from here.