Here's my newest. A used (but not much) Kimber Pro Carry (non Series II). The prior owner installed a Novak rear which I concur with (Novak now makes a drop-in sight for Kimbers). I replaced the long mag catch and thumb safety with Colt units for less chance of inadvertent activation while being carried concealed. The trigger was swapped for an STI unit I had on hand, and the grips are Hogue Kingwood (I think) with STS hex screws.
Tomorrow I'm gonna test it out and see if it needs any fluff n' buff work. Until then I'm leaving the internals alone.