Justin Burtch just posted a handful of cool attributes that extend the basic testing attributes within Team System's unit test framework.
Some of those include
[Rollback] - to rollback DB changes after the test
[TimedTest] - fail if time expires
[EnvironmentVariable] - Set Env.. var to a value for the duration of the test
[ParameterizedDataMethod] - kinda like MbUnit RowTest
Very cool Justin!