I used to use a Melitta coffee maker when I camped -- the single cup maker with either the paper or resuable filters works pretty well -- and it is fast. It's basically a plastic filter holder that sits on your cup.
http://www.amazon.com/Melitta-Ready-...p+coffee+maker
They make a larger version that comes with a carafe.
http://www.amazon.com/Melitta-Coffee...ywords=Melitta
If you bring the right coffee, ground to the right size it makes a great cup of coffee.