Thanks for getting me into that crisis... so I think I don't belong to any marginal group.
I am a "Switcher", a "Power User", maybe a little bit of "The Supercilious Mac User", too and the "Gamer" if you take the PS2 instead of a PC (who claims that the PC is better than a PS2???)... and another one you forgot:
the "poor PC User", who really want's it's entire "computer-farm" running on MACs (a few minutes after he has purchased his first MAC ever) but has to wait just a bit longer until he can afford it :)
My PC Journey to Macintosh
What type of Mac-Head are you?