If you want to try a different version of Linux/Unix, give
Ubuntu a try. It is a very user friendly version that I ran on my laptop for a while, but started having problems with the wireless network connection so went back to windows. I believe that have that corrected now so I might try again.
I believe they also have a version that will boot from a CD so that you can see it without having to affect your current operating system or data. It is a bit slower that way, but worth a look.