I just did the wet-sand & polish method to one of my headlights today (passenger side) and it turned out awesome (relatively speaking). Granted, mine weren't as bad as some I've seen (another CSVT that lives a few blocks away has nearly opaque yellow ones
), but the results were worth it.
I just followed the How To at the top of this particular forum and it worked like a charm. I'll get around to doing the other one tomorrow and maybe I'll get a chance to do the fog light lenses as well. Oh, and I polished it up with Meguiars PlastX in the end so it's super smooth, but I may apply a few coats of Zaino to them when I'm all finished.
Anyway, I posted some pics of the before & after here:
http://community.webshots.com/album/415731415LtJLOs 
