Windows Server DNS question

Using the internal DNS server(Windows 2003 Server), can I point a single URL from a legitimate domain to a certain IP address, while leaving all other variances of that domain pointing to their existing location?

Here’s an example of what I’m looking for.

http://www.notourdomain.com/ needs to route over the internet
http://inside.notourdomain.com/ needs to be routed over an internal VPN connection

Can it be done?