However, if you haven't already acquired the percolator, you might want to check out some of the portable (plastic) drip rigs, which work just like your drip coffee maker at home. Just pour in boiling water.
That's what we used back in the days I was camping with friends. (broken link removed to http://www.cutleryandmore.com/rsvp/manual-drip-coffee-filter-cone-p131070?gclid=CM_B18itg74CFcyhOgod9lkARQ)
Just needs a few filters and some coffee; a pot for making hot water and a thermos we had anyway. (That is actually still the way I make my coffee at home.)