To much comment FUD is going around right now. Stop it please! TDD is still possible with the Express versions of VS.NET! TestDriven.Net is *Not* required to utilize TDD. For example: NUnit is just one of the many tools that work just fine alongside Express. Maybe not as convenient, but it works just the same. I dont like it when people act like this is the end of TDD using Express.
...must get the green light!