There are a couple of promotions out at the moment around Visual Studio 2008.

Two for the price of one

If you purchase Visual Studio Team System 2008 Developer Edition with MSDN Premium, you'll also get download access to Visual Studio Team System 2008 Database Edition.

30% off Upgrade to VSTS Team Edition

This promotion means that essentially you step up for the difference in renewal fee.  If you have Visual Studio Professional with a MSDN Premium subscription you are eligible to receive a 30% discount when you purchase a step up license for VSTS team Edition (that is one of the Development, Test, or Architect Editions).

This promotion will end June 30, 2009.

30% off Upgrade to VSTS Team Suite

If you've got one of the Team Editions already (Developer, Test or Architect) and want to upgrade to the full suite which includes all the tools, you can get a 30% discount when you purchase a step up license for VSTS Team Suite.

This will also expire on June 30, 2009.

If you are considering your Visual Studio options, these are worth knowing about.