As you know, Team Edition for Database Professionals is part of the larger Visual Studio Team System. Much of the value of this toolset is only realized when you leverage the entire Team Suite.
Some of the tighter integration you get when you use the entire Team Suite with Team Foundation Server includes:
§ Work Item Tracking
§ Source Control integration
§ Checkin policies
§ Team Build
§ Test list management
§ And much more!
I would encourage you as you evaluate Team Edition for Database Professionals, you evaluate the entire suite with Team Foundation Server.
Below are links to where you can get trial versions of Team System:
Visual Studio 2005 Team Suite 180-Day Trial
Visual Studio 2005 Team Foundation Server 180-Day Trial
Team Edition for Database Professionals CTP4