I want to get an old mac to play around with, what is the oldest mac to support ethernet? so I can connect it to the internet, also what is the minimum OS I would need? I'd prefer an all-in-one, I've just got no idea! and I have a PCI ethernet card that I could use, but if there is somethign pre-PCI(ISA?) that would be ok too Also, whats the oldest laptop? It looks like the 1400 pBook can do it, but you need some type of ethernet add on card?