Win2K, MacOS 9.1 and ADSL

I have an iMac running MacOS 9.1 permanently at home. For work, I use a laptop running Windows 2000 Server. The ADSL modem is configured as a modem with a locked configuration (Terra, Spain). What I would like to do is the following:
1. Share the ADSL connection to be able to be connected from both machines at the same time.

2. Share files and printers (fax) between the iMac and the Windows 2000 Server laptop.

How do I accomplish this, and where can I find stuff to read on this?


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Regards, Charles.