louiscox said:

Do you think that if I were to get say an iMac G3 that the Classic and iMac if plugged into a modern switch would just start talking to each other? And that also my modern Mac and the iMac might also see each other?

Click to expand...

Once AppleTalk is set to Ethernet and turned on, yes.  You'll have to go to Sharing Setup and then turn on File Sharing.  After File Sharing is turned on, you should see them in the Chooser when you select AppleShare.

By the way, I also have an older Netgear 10/100 switch (a GS108, 8 port version of the GS105), and it works great.  I've used it with both an Apple NuBUS ethernet card and a FastPath 4+ via MacIP.  If feeef has had good luck with his GS105, my bet for a compatible switch would be an older Netgear.  They're dirt cheap.  About $5 usually, if not cheaper.  You can often find stacks of them at a computer recycler.