Here's a commented version of my .vimrc, which is modeled after Steve's, albeit nowhere near as comprehensive. (Looks like I lost it's fixed width in the paste? Sorry!)
For me it's a lot quicker to reference comments than the :help entry for each option. Thought it might help others who are creating/modifying their .vimrc.
And of course, thanks Steve for continuing to share your stuff. I'm in love with Vim, and a lot of that's thanks to you.