Just set up a dual-boot
I have yet to find anything that I would be willing to replace Windows with. Linux is fun, but just not as useful to me as Windows is. I don't mind paying for Windows if that's what it takes to get something accomplished.
I'm sure Linux would be great if I had time to sit down and learn it. If I had over 10yrs experience with Unix based stuff like I do with DOS/Windows, then it would be a different story.