Just pondering here, as I'll be in the market not TOO far in the future to round out the cookware collection I've put together so far, when I won't be able to bum pots and pans off family/roommates.
So far I've got a 4 quart and 8 quart (QVC Stainless 500), a full set of cast iron skillets that I don't use near enough, and a pasta pot of about 6 quarts (gift). Beyond that, I'm not really sure what I ought to have on hand at all times.
EDIT: Idiot that I is, I forgot all about my wok. A Typhoon 14", it was once nonstick, but thanks to the high carbon content and frequent use, is now even less stick than before!
Now it's gonna be mad at me for forgetting about it, though.