Need p2p server software

[Seft]

Hello, I'm looking for a p2p app for my lan which supports:

File Hashing (DL off multiple peeps at the same time)
Search
Chat
User Accounts
Free (Or even better OSS)

And preferably fast.

Using Direct Connect atm, but no file hashing and occaisionally quite slow.

Edonkey is a candidate, but no user accounts (yet). IP blocking is OK, but not the best solution :/

Any suggestions?

[black_magiic]

Lan2P is the only one I can think of maybe foldershare

http://www.lan2p.com/
http://www.foldershare.com