This is an interesting tidbit: If you work at the National Institutes of Health as an employee or contractor, you are probably eligible for discounted license prices on many Microsoft products and Parallels Desktop for Mac, or so CIT’s latest Interface newsletter informs me.
I happen to know that this is also true at the Department of State (the Microsoft part, anyway) so I wouldn’t be surprised if employees and contractors at most Federal agencies were able to take advantage of similar arrangements. Check with your IT folks to find out!