MS Virtual Server- SW Development Scenario

[WALI <hkhasgiwale () gmail com>]

A related question to the ongoing thread of VMware.

I have heard a lot about deploying Virtual Server for Software development 
and test environment rather than keeping 10 machines stacked under the 
developers tables.

But there is a small glitch.

Each of our developers has / need access to office LAN for checking out 
emails/browsing internet etc.
Now, Compliance dictates that development/test environments should be 
isolated with developers having little/no access to production except that 
they can have read/execute permissions on the software that they developed.

Virtual Sever 2005R2 allows me with two options:
1. Virtual machines in their own internal network, accessible only through 
Remote Control after I enter into the host machines.
2. Virtual machines connected to the outside network (physical NIC of the 
host machine) and available via Remote desktop from anywhere in the LAN.

I don't want to assign two desktops to each developer. One for accessing 
his Development machines on Virtual Server, and the other to be able to 
access office emails/ browse internet etc.

What is the right way? Can I multihome developers desktop?