You've got Double Action Only (DAO), Double Action/Single Action (DA/SA), and striker safe-action type pistols on that list. My advice: figure out which trigger system you prefer first, it will help you immensely. You may very well change at a later date, but it will narrow the field.
Guns don't kill people. Apes with guns kill people! - Robin Williams
Number of handguns currently owned and previously owned: 45.