Oh dip-dang, I made a commercial demo. It's the first bit of audio I've submitted, so be gentle. I've also got a new website for my voice acting services, check it out if ya want. Though I'm afraid to say that if you want me to do a voice in a movie or game, I can't work for free no mo'. I might be willing to work with your budget, but I will need some sort of compensation.
Go listen, and have a nice day: http://www.newgrounds.com/audio/listen/706806
<--Link to site on the side there.