Windows 2000 : Two LAN on same laptop

The computer:
Dell Laptop with Network card (750Mhz-384Meg)

Environment: Home
-Dock Station with its own network card used for home network only
-LAN:Ethernet Network w/3computers
-Router+Cable modem
-Workgroup

Environment: Business
-LAN
-Domain
-Internal Network card used for Business network only
-Lotus Notes

Question:

How can I configure both networks on the laptop and using one configuration or the other depending of where I am: Home or Business