oldbluetruck...
I have NO intention of using the bed of my truck to throw things in or drive nails into...

While she will never be a "trailer queen" and will probably never win a trophy, I do keep her locked up in a dry garage and would continue to do so when she was done... actually especially then! Of course I might get caught in the rain at a show and shine, but if the wood is sealed and finished right I wouldn't imagine that would be a problem... she may even get a toneau cover when she's done to further protect the bed if I can come up with one interesting enough!
While I do enjoy working with pine I can't see it being a solution for me... it is very soft compared to the other options and in my experience doesn't weather as well as most hardwoods... yes it would be cheaper and perhaps better for a daily driver but I doubt my truck will ever be that either... sunday drives maybe but not much else...
Thanks for the ideas... I am learning a lot from this thread and exploring even more options than I had thought of in the beginning...

Thanks again...
~Trev