And learn I did.
I got a bunch of peaches from Jaemor Farms and found an easy recipe online (it's from the Georgia Peach Counsel page). It was a bit of work and probably took a bit longer than it should but hey - first time.
What did I need for 12 1/2 pint jars?
About 11-12 cups peeled, chopped peaches
7 cups of sugar
9-10 Tbs pectin
What did I do?
Washed all my jars, kids, and rings. Peeled and chopped the peaches. Added some lemon juice (probably a couple tablespoons) to keep them from browning. Put the peaches and sugar in a big pot, cooked until it tried to boil, then added the pectin. Very LOW boil for a few minutes, stirring constantly, until it reaches consistency you want. Put the jars, lids, and rings in boiling water for 5 minutes. Pour preserves in jars, close finger right, put in boiling water 5 minutes. Allow them to cool (you'll hear the kids pop which means they're sealed).