If you have Visual Studio with MSDN, you should be eligible to step up (transform) your product into a Team System role (or Team Suite) and getting a 30% rebate 🙂
On top of that, Team Developer and Team Database merged so you can step up at a lower cost and get an extra role for free.
Promo is available only from Dec 1st to June 30st.
If you have Visual Studio without MSDN, you can upgrade to an MSDN Professional or Premium Subscription with your current edition of Visual Studio 2005 or 2008 Professional, and you could save more than $500.
Please contact me for further details.