We have a section about equipment on our website. I think we started with an outfit that cost about $400 total for both of us, and tht included bags, packs and a tent.

I want to reiterate a couple of things that Lori said. Find a local hiking group and join them. you will meet great people, and you will learn how they do things---a great start for deciding how you want to do things.

And as for food---you are overthinking it. OVernight backpacking trips are simple. Take ready to eat food---the weight isn't going to be an issus--and just eat what you like. On longer hikes you'll have to start thinking about this, and using more dehydrated and freeze-dried foods. But not now. You don't even know it you'll like sleeping in a tent miles from other people!