Phil, to answer your initial question, check out the Blackhawk Serpa CQC
line of holsters; they come in matte black and carbon-fiber applique. I have the CF model for my G27 and use it for both OC (outside the waistband) and CC. I even CC in situations that would normally get you busted for "printing", as it is such a close fit due to the polymer molding.
It has both a tension screw and a locking lever that must be depressed by your trigger finger to unlock the trigger guard from the holster. No snaps or loops to get caught up on and it's cut in the front for quick muzzle-on-target draws. When depressing the locking lever, your finger is positioned on the frame of the pistol, exactly where it should be for the draw.
You didn't mention what make/model of pistol, so I can't check for you whether they have it in either matte or CF for you.
Edit: it comes with both belt loops and a paddle that attach via screws. It can be set to vertical, slight forward/back cant, or full forward/back cant by just changing the position of the screws, which allows it to change from strong-side draw to cross-draw.