Orientation is the first step. You will come up with so many questions (after it of course thats usually when they come!) but welcome to the boards! you'll also find al ot of information on here as well.
sorry i dont know about support groups in your area as i am on the east coast

if you google weight loss surgey or gastric bypass support groups, im sure something will pop up. also usually the surgery center or hospital will have a group that meets monthly as well. ask at your orientation.
good luck on the journey!!