Thanks JackMDS, I was just going to do that.
<< If you're running BT/2K/XP, you can assign more than one IP address to a NIC. This allows you to have one IP address for your Internet connection and one IP address for your internal network, all running across one cable and one hub. This works quite nicely, and is called Multinetting. Not the best thing to do, but it does function.
That being said, if you have two different DHCP servers on the network, one serving each network, things CAN get a bit dicey. For the machines on your internal network, it's better to hard-code in IP addresses and not use DHCP. >>
The problem is that most broadband companies use DHCP to assign you an IP address, so you're only allowed one - You cant have a static and dynamic address on the same adaptor without some clever trickery... which is exactly what sygate does...