Summary
Visual Studio 2005 Team System is a great tool for developers. It provides a vastly expanded tool set over previous versions of Visual Studio, especially as those tools relate to the developer. After developing code using tools found in Visual Studio Team Edition for Developers, you'll likely find it difficult and unpleasant to go back to any other development environment.
Using Visual Studio Team Edition for Developers, in conjunction with other role-based editions of Visual Studio 2005 Team System, can dramatically increase the productivity of an enterprise coding team, and Team System will definitely assist you in becoming a more productive developer.