Yes on night sights, first thing I did with the Kimber Ultra Carry II after I bought it was to send the slide in to Kimber's custom shop for the installation of the sights.
Also have it fitted with CT grips. Each to his own I guess, bit I like having all the options available to me that I can.
If nothing else, the glow from the night sights lets me clearly identify exactly where my gun is if I wake up to a loud noise in the middle of the night..... and I believe that most BG's will know what that red dot on their center mass means.
All my handguns have CT grips, including the one I gave to my son shortly after he turned 21 and received his CHL. I also have night sights on most of them, I believe a couple of the snubby wheel guns don't.