Thanks for all the ideas folks. One way or the other I'll be sharing my homeberw. For this week's festivities, we'll just be parking the camper at a friend's lake house so I can manage the little extra hassle of getting this beer served. For our true camping trips this summer I'm going to need to come up with a different, no-hassle plan. After a little browsing, I've discovered some nice little 3 gallon set-ups with a tap and the little CO2 charger that Yooper linked to. Great, there goes another $100. Every time I get something for brewing I say, "now I'm set and don't need to buy anything else". I said it after I got 2 kegs, then again after I got a 3 gallon carboy. I'm sure I'll say it again after I get a 3 gallon keg.
But you know what? Being the guy at the campground with a keg in the camper is worth it.