setting up a massive aux power system?

Hey everyone I'm new here although it doesn't feel like it as Ive come here for years and just read threads! What I want to do is this;
Mount (2) 2500 watt deep cycle batteries in the tool box of my taco and use them for aux power while camping and such. a few questions first though, can my alternator effectively charge these batteries? Is there a rating on solenoids that i should be aware of before buying one? and finally how do i (once this is done) go from the hot post of the batteries to an outlet like situation? I was thinking of using one of the little in bed tool boxes for an outlet like you might find on the outside of your house...any help would be cool thanks in advance!! was thinking something like this;
http://www.expeditionportal.com/for...ke-a-cheap-isolated-dual-battery-setup-for-50