Hi GlockTalk! After a lot of research and reading, I settled on a Gen3 G23. It replaces a larger frame WW2 relic Hi-Power that was OK for home defense but not for conceal carry. Also wanted to update to a modern pistol platform. The G23 fit the bill for ammo prevalence and performance, conceal-ability, price point, safety and usability. From what I gather the top upgrades for a Glock are sights and a trigger job of some sort. I'm open to other suggestions, too.