Setting up a remote access vpn with server 2003

[htechhost]

We are setting up a remote access server using server 2003. We have two nic cards in the server. After looking at the documentation it appears that one nic should be for the local network (lan) and the other card should be connected to the internet. My question is on our current network we have a cisco router\firewall connected to two switches. One is our internal network and the other is a dmz using a dmz configuration on the cisco pix. So in order to get the second interface for the vpn to be connected to the internet do we need to connect it to the firewall and then the traffic will pass through our vpn server to the local area network?

current config:

Ds1--->Router--->ciscopix-----lanswitch--->Internal[computers]/[servers]
|
|(DMZ)--->dmzswitch--->[dmzservers]


config with vpn?

Ds1--->Router--->ciscopix-->VPNSERVER*-->switch--->Internal
|
|(DMZ)--->dmzswitch--->[dmzservers]
*two interfaces