If I may suggest I installed Mandriva one 2007 rc2 3 day ago and it rock no virus can harm it or spyware, I can play video and in all kind format with the plf pakage. And the 3d desktop is awsome. Im seriously thinking about letting window xp go for good.
here is a link of the review
mandriva rc2 2007 don't install this version because it is still in developpement the final one will be available by the end of the week. But you still can use the live cd to chek this version without installing it to your computer.