ORIGINAL: bigdawgwill44

I'm looking to buy my first concealed pistol. I've narrowed it down to the Kahr slim frame pistol but am not sure which caliber. I'm looking at .40 or .45. Any suggestions on which i should go with, i'm a big guy with big hands and the .45 seems to feel very good in my hand, would this be a good choice or is .45 too much for concealed purposes? Thanks!