If I understand this correctly, the same ips you refer to are actually different ips (192.168.0.2, 192.168.0.3, etc.),
no. They are the same ip address. 10.0.0.10. Does that make it more of a hub than switch then?

running an old pc with ipcop or freesco or whatever probably would be the best idea as it gives me most control but i really would prefer a hardware router

Train, i think you have completely misunderstood my question. I dont want dhcp, thats why i turned it off. but thanks anyway.

VLAN sounds like the way to go. Thanks