SevenSecondSUV, take it from another turbo ranger driver, you NEED two guns! Hahaha, if nothing else you need them just so you can lay them on a table and keep moving your head back and forth between them, enjoying the awesomeness.
My advice piggy backs on what one guy said about getting a feeling for the guns you would be comfortable with. I found my gun that way. I picked up a Springfield P9 (CZ75 clone) in a store once and was instantly in love with it. No matter how I held it, the sights lined up how I need and 9mm is easy to find. I also have a Taurus M608 6 3/8" bbl (8 shot) .357 which is a bit too heavy at times. I don't have huge hands, and I'm looking for a slightly smaller frame revolver to have in that caliber. Overall, that gun was a mistake now that I look back on it. I bought it as an impulse because it was so good looking and it was the weekend after my 21st birthday. I still want a .357, but just in a smaller and better balanced package.