EMS, if you get windows 7, you can go to microsofts website and download the virtual PC and Windows XP for free! I am currently using Windows 7 Professional and Flexi 7.6 in the XP virual PC and can run ALL of my equipment and programs in both 7 and XP.
It will take some time to configure everything , but don't be afraid of windows 7. They actually got it right this time!