I read a review on Glare products a little while back and decided to try them. Definitely the best polish and light scratch removers I've ever tried.

You can buy them here: http://www.glare.com/

You can read the same reviews that convinced me here:

http://www.webbikeworld.com/r3/swirl-remover/
http://www.webbikeworld.com/r2/glare...are-polish.htm

By the way, I use an orbital polisher. The Spider swirl remover works much better with one of those. I tried it by hand first and didn't get great results. Then I plugged in the orbital polisher and the stuff really works in getting out those swirl marks and light scratches.