RWK: Thanks for the revolver recommendation, but I would like to stick to just one ammo type for now (9mm). My reasoning is that I would hate to have to worry about making sure that I have two different ammo types at all the different locations I frequent (home, vacation home, office, etc.) Not that I am paranoid, but I also believe that in an end-of-civilization-as-we know-it type scenario, it would be better to have all your guns using the same ammo type. Otherwise, if one of your guns broke/was lost, etc., you would have your usable ammo supply slashed in half. Although, I guess if you had two guns using different ammo types you would thereby increase your chances of finding new ammo supplies in an apocolyptic scenario (maybe this is a topic for a different thread). However, I defintitely do wish to buy a revolver one day after I have become more proficient with my semi's.
Juliet: Not really interested in another carry gun. My H&K P7M8 is ideal for me since the squeeze-cocker virtually eliminates the possiblity that I will accidentally discharge a round while holstering.
Scooter2: I will take your advice about practicing extensively with only double action trigger pulls when I get my Beretta. It seems to make sense.