Don't pussyfoot around. Get a Glock.
I believe the saying was , "Lose that nickel plated sissy pistol - get yourself a glock." as he handed back the Taurus PT-945 ....
Don't get me wrong, glocks are fine shooters, and I shoot them well, but they simply have a bad grip angle. If I am pulled down on a bad guy, my natural point of aim would have the round go center mass, but the pistol itself would have the round going either into their throat or into their head.
Well, back in the mid 90's when I was a sworn officer, I had put a round through someone's throat simply because of that. A 13 year old to boot. He fired 3 rounds at me - I fired two. First one missed, second hit his throat resulting in a mushroomed round pushing one of his vertebrae out the back of his neck. He was dead before he started falling to the ground.
Next time - God forbid - I'd like to be able to say that when my natural point of aim is at someone's chest that my round will go there without having to worry whether or not my wrist is torqued forward far enough. When the chit hits the fan I want to concentrate on what my target is doing, not on my wrist!
Now the Beretta idea - not a bad idea at all - BUT - my experience with Beretta has been somewhat of a rusty tale.. Yes - RUST... Maybe I got one with a piss-poor finish, but the slide of my last 92FS got a layer of surface rust every time I carried. If I get another Beretta it would have to be an Inox, which I believe will take the Beretta pistol and carbine combo out of my price range.. Great idea though, as I LOVE shooting the CX4 Storm!
What about the CZ 75 SP-01? The 20 round capacity is amazing! This meets all of your requirements except the 2 tone.
I'll have to handle one - my local shop didn't have one available when I went in and fondled the CZ75B Stainless.. I have to say though, if the grip feels anything like the regular 75B - I might have to melt like butter when I get it in hand! My concern about that high capacity mag would be the grip length making it hard to conceal - very sexy looking weapon for an all black model though!
Anyone with experience with this "Poly-coat" - I take it this is something similar to a polymer "Skin" , or like Duracoat/Gunkote ? If that's the case, I could get the slide done up in a stainless Duracoat job.
I've done some basic pricing on the SP-01 and the P-01 - if I played my cards right and found the right deals I could maybe squeeze BOTH of them into the $1100 if I opted out of the night sights that are available on both... If I went that route and could get NS on just one, it would probably be the P-01.