Romeo - 5:22 pm on Aug 9, 2004 (gmt 0)

Cheapest solution would be some Intel- or AMD-based PC-servers. You then have to decide if you want to run Windows or Linux on the servers.

For security reasons, I would set up at least 2 different servers: one for the internet connection, and another one to hold your internal files and documents.
Don't forget separate firewalls between your internet-server and the internet and your intra-net.

For availability reasons, you should also think about backup servers in case one of the boxes will die in case of hardware faults. "What will it cost when the central file server dies and 100 people can't do their work anymore?"

Regards,
R.