Minivan, SUV or Truck - 2200-3500. What should I buy?

I am in the Phoenix area and am looking to get something that I can commute with. I want to be able to lug my dog, camping gear and fishing gear + maybe a kayak.

I have a low price range and noticed that minivans are very cheap. I really don't care how much my girlfriend will laugh at me, so I don't mind that as an option. My question is what car should I buy? If you offer a model, how many miles is too much for that model?