Jonathan, lots of good opinions given so far, but IMO you did not yet answer 2 critical questions:
1. what will you be using it for, ie when will you be carrying it?
2. are you in a bad neighborhood, ie do you need 1 shot stopping or do you expect it to be mostly deterrent IF you ever have to draw it?
If it's primarily for when you're out running then I'd go with something small, thin, light - ruger lcp or kel-tec 380. I used to run a lot back when my knees worked, I'm picturing a big gun banging against my hip/butt every step for 5 or 10 miles, I bet I'd end up leaving the gun at home after a while.
FYI, I've been there -- I mean, asked "what gun should I buy for concealed carry?" Over the years the answer has evolved into several different guns that I carry at different times (for different purposes): a big revolver, a small revolver, a big semi auto (1911), and a small light semi auto (380).
1. It'll be an everyday carry gun, but I want something small and out of the way. I'd like to be able to carry while I run, or do other outdoor activities where a bigger gun might be a hinderance.
2. My town's pretty quiet, but like anywhere else there are some meth heads and crack heads around. I don't ever anticipate needing it, but I'd like to have the option if things ever escalated to that point.
I do my best to be situationally aware of everything around me. Even when I'm running with ear buds in, they're turned down low and my head is on a swivel. Also, I always run with my dog. She's a big wuss, but I think the presence of one is enough to deter many would-be bad guys. I'm not huge, but I'm not a small guy, either, at over 220 lbs., so I don't think I'd be a typical target for most 150 lb. crack heads. Also, I've had formal fight training from a guy that ended up fighting in the UFC. Not enough that I'd feel confident jumping into the ring, but if I ever needed it on the streets I know what to do.
I appreciate everybody helping out and giving advice. I'm really leaning towards the Ruger, but I do want to shoot one first. I think a guy I go to church with has one, so I might be able to go put a few rounds through his.