Good leather holsters I have had good luck with are Milt Sparks SS II and the VM II. Both are IWB, and I prefer to carry that way for CC.....you may not. You can get a Summer Special II from Brownell's here:
http://www.brownells.com/.aspx/sid=25824/pid=9922/Product/1911_AUTO_SUMMER_SPECIAL_2_HOLSTER They are out of stock on the Commander size, but you could order the Government size and the gun will fit fine. A VM II you can get from Top Gun Supply when they are in stock, but they are not right now. You can sign up for email notification when they are in stock.
http://www.topgunsupply.com/vm2-black-r-hand-1-1-2-belt-loops-4-1911.html
I like a good quality leather belt specifically built to be a gun belt. I wear one that is 1.25" wide, because I often wear dress pants/ suit pants and a 1.50" belt will not work well with most dress pants. I have 3 quality leather belts made by Al at A&G Custom Gun Leather. You can order on his website here:
http://www.agcustomgunleather.com/ His customer service skills are top notch.
Milt Sparks SS II with Springfield LW Bobtailed Champion and Black A&G 1.25" belt
Milt Sparks VM II
MTAC from Comp-Tac. It is a hybrid holster. Very slim.
If you're fit (physically), you could consider carrying appendix. This is my preferred carry style and I would recommend a Archangel Kydex holster from Dale Fricke. He also makes a Horizontal Mag Pouch that conceals well.
Archangel with LW Champion
Good luck. There are so many quality holster and belt makers out there, and these are just a few that I have had good luck with.
PS. This is just my opinion, but if I was going to be buying a Kimber Pro series 1911 I would only get one with the aluminum frame because of the weight savings and ease of all day carry. If I was getting an all stainless 1911, you might as well get the full size. The weight savings from 4" to 5" is nothing, but it is substantual when you go to the aluminum frame. Like I said, JMO.