Tom,
Not sure if you got my email, but...
1. My friend Pete does sound effects for the X Box and I am sure he would be happy to do a one-time favor for me (also, he's heard The Gorch and he loved it).
2. I am kind of handly with SoundForge, if you already have sounds but need them edited in some way
3.
www.findsounds.com It's a little weak compared to expensive record libraries, but if you're doing something with no budget, it's alright.
-Jon