Here is a great site as far as concealed weapons go. Good background information and links to various state statutes, etc:
http://www.packing.org/Here's a link to NRA basic firearms training courses:
http://www.nrahq.org/education/training/basictraining.asp+1 for the Glock 23. It does have a trigger safety, if that is a concern to you. Also, be sure that you have additional insurance. God forbid you are involved in a shooting; your home, car, and everything else you've worked hard for are at risk. You want to protect yourself and your family in the short term AND the long term.