Always been a fan of peer group tools. Here are a couple that allow you to p2p file sharing with a small group. This can allow you to run a complete virtual office with no central server structure.. nice…

 

 

http://www.qnext.com/

http://www.groove.net/home/index.cfm

http://www.grouper.com/

http://www.laplink.com/products/sharedirect/overview.asp