My daily carry at work is a Colt 1911a1 in an Eagle Industries nylon holster. For a back-up gun, I carry a S&W 442.
Currently, I can a Colt Commander (soon to be replaced by a Colt CCO) when I'm off duty or in plain clothes. It gets carried in either a Kramer holster or an Eagle fanny pack.
At work or away from it, I too carry a knife,usually a Benchmade variant of the Emerson.
Shameless plug for my gunsmith - Doug McDougall at SM&A has "built" all my Colts and has done an outstanding job! Additionally, he did my duty shotgun too.