Welcome to Techsurvivors MrsLOP!
I know your concerns with the disease you have and think that even with the Mac you have you can get things that you want to accomplish done with what you have. It (your Mac) will be slow, but information will still be accessible to you.
As Mike stated that he has a lot of stuff around for that Mac, so do I. Help is near by.
Dial up internet access will be your best affordable bet, but if broadband is what you want, your Mac does have that capability. it will need an adapter to convert the ethernet port from AAUI to RJ45. Your Mac may not have a built in modem and if it does it will have what they call a Geoport modem. Not the best, but will work. An external modem would be best though. Can you please tell us if you already have a modem or not? And if so, if it is the one built in or an external one? If an external one, what kind is it?
Also, if you know, how much memory does your 6100 have?
Wishing you the best in your quest for answers and a full recovery.