Here is the before picture of my washed driver's side headlight (definitely the worse of the 2).


Here is the after picture.


Below is the kit I used. For the $20 I spent at Napa I'm very pleased with the results.

The kit consists of 4 pieces of sandpaper (1,000 grit, 1,500 grit, 2,000 grit, and 2,500 grit). Also, there's a bottle of plastic polishing compound and a pair of gloves for those who don't want to get their hands dirty. If anyone is interested in looking at the instructions, I can scan them and post them also.
My brother works at Ressler and tells me they have a polishing compound they usually use for headlights. I asked him to look into it because I figured with a buffer I could work a few more of the finer sanding lines out.