The P2000 is a bit smaller than the USP, easier to conceal, very light, and has interchangeable backstraps so you can make it fit your hand. 9mm, 13+1 rounds. I absolutely love mine, but I suggest handling one to see if it's right for you. Ambidextrous controls, light, ergonomic (for me), highly accurate (for me). Might be worth looking at. Good luck!
Edited to add: If the G19 fits your hand and points naturally, it might be the pistol for you.