I would get the strongest tool possible and that would be either Leatherman Supertool 200 or Crunch and from Swiss Army family a Swisstool. I have a Swisstool in my car and it is a really strong piece fo equipment. For all around jobs it works fine (used it only once since my Wave is getting all the workout). Since I handled the Supertool in the store I know it is very similar in feel and quality to the Swiss Army. Now I mentioned Crunch from Leatherman for the reason that sometimes you have nobody to hold you a bolt and that's when having a vise-grip type tool would be life saving.

Matt