Here are some vocal samples of other auditions I have done:

http://www.youtube.com/watch?v=8VSKhqRXRCo
http://www.youtube.com/watch?v=JCrJ0Fg8UvI
http://www.youtube.com/watch?v=FXNhCXVxIv8

And one in Spanish with a lengthy introduction using my real voice:
http://www.youtube.com/watch?v=zlyUwUlr5E0

How about sound quality?
I guess we can leave that question for after getting a team. But it's just so I know what kind of mic I should buy.
Logitech sells a cheap mic headset for around $20 American that is excellent quality.