There are fanny packs built for concealed carry.
I run as well, and while I don't carry when I do, I'd be concerned about chaffing and my sweat soaking the gun.
With those two factors in mind, I think a fanny pack is your best choice.
Here's a good example from Galco.
http://www.usgalco.com/HolsterPG3.as...=320&GunID=403