Sound Doping Software?

Is there a free sound doping software, by any chance?
I did a quick search, but didn't find anything.
Just want to practice some dialogue. :)
Thanks.

EDIT: Check out what I found! http://www.animationmeat.com/practice/practice.html
Downloadable dialogue complete with X-sheet! Sweet deal.

EDIT2: Omg! Sweet! It's got a line from "Back to the Future"! Exciting! Can't wait to start on some dialogue. :D

.::Blog::.