Alex King has done it again! He provides a hack for WordPress to build a really simple style switcher and includes four (?) different styles in the download. I personally really like his Golf Style. Test it out here and download it from here.
While you are visiting his site, check out the other hacks that he has worked on and thank him if you use his work. I use a bunch of them on this site and well as my main blog. Thanks a bunch Alex.