The latest Windows Vista RC2 has improved tremendously but you may want to keep using Windows XP until it has gone through a few cycles of security & bug fixes after its official release. Are you aware of the features that are missing if you continue to use Windows XP? Or even worse what limitations Microsoft has imposed on the so-called Windows XP “down-level” features to discourage you from using the older Windows?
Internet Explorer 7
Internet Explorer 7 running on Windows XP will not run in Protected Mode or support Parental Controls.