Maybe RAM, depending on how much the machine has already. 128MB should suffice for running OS X up to version 10.3 "Panther".So if I wanted to run say, 10.0, would it need any upgrades?
It would probably end up being cheaper and easier just to buy yourself a slot loader. It'll end up being a far better performer anywaySo at this point I am trying to decide if it would be cheaper to buy the memory or iMac slot load.