I think I'm going to buy myself a handgun for my birthday and I think I've got my choice narrowed down to either a CZ 75 in 40 S&W or CZ 97 in 45 ACP. I've never owned a handgun before(and have only shot a .22 caliber handgun in the past) and I was wondering what everyone's opinion on what I should buy? This will be used primarily for target practice and home defense.