Finale 2009 - Sound Library / marching band sound font needed

Hey everyone! Sorry for being a n00b about all this but I don't know where to turn and can't find much information.

I do a lot of arranging/composing for marching bands. I am looking for a some good soundfonts for brass, maybe woodwinds, and percussion. Brass is the big one.

This is my setup:

Macbook - OS X 10.5.andsomechange, 2GB Ram, and I use Finale 2009.

I've messaged this guy, who's video I heard on youtube. I really like the brass soundfont but I can't seem to find anything helpful on google on the issue.

seen here (not trying to promote someone and I'm sorry if its against the rules to do this): http://www.youtube.com/watch?v=GyyO0Yssh9k

Can anyone suggest somewhere I can get free or cheap soundfonts for marching band? I don't want to go the route of Garritan. I've heard there stuff and I'm not impressed. The files used in this recording are very lively and I like it.

Also, any suggestions about using soundfonts with finale, and tips? I have a rough idea on how to import them, but any tips would be helpful.

Thanks

John