I've been using vim for several years, but only recently have I had the itch to tweak it to the brink of madness. After a few weeks/months of playing around with vim, the fruits of my labor have paid off in the ultimate vimrc file. You can take a peek, if you dare.
Note, this gets updated from time to time, but I don't feel like documenting when. You can check back every so often if you'd like.