Looking for some upgrade advice

[Boaz Bezborodko]

I want to start planning an upgrade of our company's server.  Currently 
we are using FilePro on Windows working off an old Netware 5.0 server 
based on a PII-350 machine.

The FilePro applications themselves run decently and will obviously run 
better if I simply upgraded the server hardware and the network to GigE.

I was considering using Linux instead of Netware, but does this mean 
having to learn something completely new or are there some decent 
packaged versions that avoid some of the pain?

Any other options I should be considering?

Thanks in advance,

Boaz