MarcoSpitz11

Thank you folks, for the generosity of your responses. It is a wealth of information that I need to evaluate, but it definitely helps.
Avillar, the link had a small error, it was http://maribelsguides.com/, but I googled it. Its a good site, Also we will be using the Renfe route to save on time, it is definitely worth the cost. Thank you, a spaniards view adds authenticity to the proceedings
Lincasanova, I would really like to push in a few activities, but I am not sure of the time, my boys and I are into motocross/dirt-biking and fly fishing, which we will look to do where possible. As far as the drive goes, I do want to have a single vehicle, but given no option, we will take 2 cars. Thanks for the info on the valencia barca route, it saves a lot of time searching. And yes, our tickets are planned such that we don't need to backtrack, its inbound at Madrid and outbound at Barcelona.
Aduchamp1, we will be dropping a bunch of our original options, so as to make the actual cities more enjoyable, I have found a rental company that rents self drive and chauffeured Mercedes Viano's, so that helps me out.
Thank you all...

lincasanova

there is fun go kartign in most places. Peñiscola has one as you come off the highway.