After deliberating for a while, I've finally done it.
Yes, that's right. Like a true Emacs geek, I've swapped my "caps lock" and "control" keys. I could see that this could be nice once I get accustomed to it, though for now I keep reaching for the "control" and turning on "caps lock". I had almost contemplating making both of them act as "control" but decided against it as that will probably just stop me from learning properly.
Doing this on a Mac once required extra software like uControl, but now in Tiger you can just do it in the Keyboard & Mouse System Preferences panel.