How tosetup internetaccess with netware5

Firstly I am new to netware and trying to get to grips with! I want to setup shared internet access for approx 10 clients who are already networked with netware 5.1 running over win 98/2000/XP using an ISDN line yes I know it is all that is available to me at present!

My questions are:

Q. What are the best options for me to do this? I don’t want to touch netware server as it is only being used for an inhouse accounts/stock program and I don’t need the headache!.

Q. Should I setup a DHCP router off the existing switch and if so how best can I do this to allow all clients to access internet without affecting their respective connections to netware server.

Many Thanks.