i just got a HK P30 and it is the nicest gun i've owned....try one out. but i think the 92FS is a fine pistol as well,you could always get a G17 trade in for 400 bucks and spend the rest on holsters,mags and ammo
Dont forget that once you have gone around and checked out the different models an excellent choice could be available on the used market. My choice from your list would be the Beretta 92.
You said if I read it correctly that you are left handed. The P2000 has a left and right side slide release. My daughter and son in law are both lefty's and it seems to be something that they really like about this gun.