Just the Mothers California Gold 3 step stuff. Compound, polish then wax using a Maguires DA drill polisher addon. I was going to try sanding, if you look at the posts above you'll see that mine weren't that bad starting out. We'll see how long it lasts, hopefully the wax will make a difference.
On other cars with worse hazing I've used Autosol metal polish to great effect, but you have to use a separate UV coating to stop it going bad again after a few months