I prtefer something a little cleaner. I tried Start8 in the CP edition and it seemred to do the job [
http://www.stardock.com/products/start8/ ]. Yes. you are adding an application but it is better than the others I've seen.
Tried something like Vista Start Menu and it was a pirce of garbage. It installed stuff that i didn't ask for. All of a sudden you had applications you didn't request. There was even a possible trojan file added [added to the Run key in HKLM\Software].