I guess the first step is to figure out which caliber you desire. Once you decide on that then the next step will be the guns purpose. CCW, target practice, competition and so on. Third, when you decide on the 1st two, find some place that has them available to rent and shoot. Feel them out to see which one fits your hand the best. There is a big difference between the full size and the baby glocks. Enjoy your journey to the dark side.