(I sure hope GB doesn't see this...he's not a big Taurus fan)
I hunt almost exclusively with my Taurus Raging Bull in 44 mag and have dropped deer in thier tracks out to 50 yards with the open sights. The ported barrel seems to tame some of the recoil.
I KNOW you don't want to hear this, because I sure didn't when I wanted my first pistol, but if you haven't done much pistol shooting before, start off with a 22 revolver.
If you just HAVE to get a bigger gun, you can't go wrong with a 357 mag. You can shoot bulk 38 special fairly cheaply, and the 357 mag will take average size deer out to 40-50 yards consistantly. I plan on keeping my 44 in the safe this year and using my 357 just to "change it up a bit."
How old are you? How much pistol shooting have you done?? Where are you (what size deer are in your area?)