The Visual studio 2010 released version is available now. Every version of VS 2010 have different features. here is matrix specifying all the features for testing. So go though these details and choose best matching version as per your requirement.
VS Test Professional: If you are manual tester and do not need any automation just use Test professional.
VS Premium : If you are Automation Tester writer and want to use CodedUI tests without Web Test and Load Test
VS Ultimate: If you want to use load testing and web testing, go for Visual studio ultimate version.
VS Ultimate: If you want to do manual and automated testing and want to use all the test features, go for VS Ultimate version.
Test Professional \ Ultimate: if you want to use Lab Manager(Hyper-V \ VmWare)
Visual Studio 2010 Versions and Their features:
| Features | Premium | Ultimate | Test Professional |
| Code Coverage | X | X | |
| Test Impact Analysis | X | X | |
| X | X | ||
| X | |||
| X | |||
| X | X | ||
| X | X |