@Charred - Our small business is networked. This not only includes obvious items like computers, printers and fax machines, but also hardware in the backbone of the business. We have one big server that is set up for our developers and it’s supported with redundant backups for extra security.
I don’t know anything about server network configuration myself but we have an administrator and he’s a real pro at setting the system up. He is also responsible for running batch jobs on it and things like that.
The server sits in its own room, complete with cooling fans and stuff. We call it the beast.