This is the bible of meadmaking. make sure you get a copy, all of the questions you're asking are answered there.
As is listed in the wiki that TripleBangin linked The Compleat Meadmaker is a great starting point and depending on where you live if there is a decent home brew store you may want to check there. I'd also say dive in and go for a learn by doing. Large batches of mead can get expensive just in your honey budget, but a gallon of mead isn't all that bad(though a few assorted reusable parts will add to the cost of that first batch).