Look for "Dragon Naturaly speaking." You didn't here this from me but there are cracked versions all over the internet. I recommend just paying for it. If you get good with it, it will pay for it's self.
Anybody know how good the headphones are that they give you in the package? I agree, this is software you might as well just buy yourself. Apparently they have some real paranoid, Fort Knox-like security on their software too which makes it hard to crack.