I use CrystalBlue
You don't really need Style XP from TGTSoft to use Visual Styles other than Windows XP (Luna), all you need is the freeware UXTHEME.DLL patcher and you're ready to go! I have tested all of the following methods with success on several different systems, but in some rare cases the Automatic Patching method may not work.
http://www.lightstar1.com/install.htm