Well, I've tried dvorak before and let's face it. It's pretty darn inconvenient to say the least. Dvorak never thought about using ctrl+c etc. So you would have to rebind a lot of things in order to be able to use them. An alternative to dvorak is
colemak. (which is what I'm using right now) It keeps the zxcvb keys in the same spot. The drawback to this layout is that it isn't supported out of the box on windows. Most linux distros work reasonably well with it though. Both layouts have the problem that when you're trying to play a game you'll likely have to rebind your keys in order to be able to play. WASD doesn't exactly work with both dvorak and colemak for instance.
If you want to try dvorak or colemak you can just do it with the keyboard you have right now. Just switch it in the keyboard config. There is no real need to switch the keys, because you aren't looking at them anyway. Right?
Assuming you do still look at the keys every once in a while I can recommend trying to learn to touch type if you've got the time for it. Whether you learn touch typing for qwerty or another layout, it's worth it if you use a computer a lot. Do also note that if you're pretty good at typing on a qwerty keyboard it might take you quite a while to attain the same speeds on another layout. I'd say that it takes
at least a month.