Having two operating systems is not as difficult as many of us consider. It just requires little hard work and some good equipment. By equipments I mean good hard disk space and good RAM sometimes, depending upon which operating systems you are going to install.
So your first step is to choose which operating systems you are going to install on your computer. I would recommend you to choose them wisely because it could have some negative effects on the performance of your systems. If you have good processor, Pentium 4, and good RAM, at least 256MB, then you do not need to worry about the selection process. There are still millions of people who are using P II and P III processors. When I had Pentium III, I was used to choose windows XP with Windows ME and that was very nice pair of operating systems.
Now let