How to setup developement with internet access and security

[Dana]

We have dev, test, QA, and prod environment for our n tier web based
application developement.
Now our network and security told me that developement environment
should not have internet access due to security. But as developer, we

must have internet access to go to MSDN or the other site while we are
coding. Do you have any experience on this situation? Could you tell

me if the developement environment really should not have internet
access? Or how should have very good security with my dev and it also
have internet access?

thanks in advanced,
Dana