Easy VLAN setup

Hello, my name is Jason, and thank you for your help in advance.
I am a IT student and I am helping out my local church with their network and I have been asked if it would be possible to setup a secure connection between their main church network and their local op-shop network. As such I am wondering if you can help me work out the easiest and cheapest (if they are one and the same) way to setup a VLAN connection between these two networks. The servers at both ends are Win2k Pro.
Thanks very much for you help.