After checking craigslist daily for a used (cheap) pop-up camper - we finally found one yesterday. It was listed for probably an hour before we called and Josh drove to Little Falls to check it out/pick it up. Seems like we got a good deal - no leaks, everything works (oven, ice box, electricity, etc), just needs a few stitches sewn (which shouldn't be an issue for crafty me). This thing is huge - it really can sleep 6-8 people comfortably!. It also came with a spare tire, 2 full propane tanks, new covers on all the cushions, a microwave, and the guy even gave Josh a ball hitch so we could tow it home. All for $500.
Now we just have to go camping :)