[BC] Multiple DYNDNS on one public IP?

[Art Reed]

I am puzzling over how I might accomplish this:

I have Comcast cable service with one public dynamic IP address
I have a Linksys RV082 router

I currently have a DYNDNS host set up so that one user can access his 
desktop via remote desktop (computer1.dyndns.org) keyed into remote 
desktop connects through router/nat to an in house machine on a private 
lan (192.168.1.x)

I set up a second DYNDNS host on the same dynamic IP address 
(computer2.dyndns.org).  Can I route this internally through the RV082 
to a different in house machine? If so, how?

Art Reed