I have a G-27,and love it.As others have said,it is the same frame as the 26,just a different cal.(.40). It's a great gun,simple to use,simple to break down for cleaning. As others have said,try one out before buying. My brother has a G-23C. It is one step up in size from the 26/27,and has a ported barrel. It has less recoil than the 27.
Try'em out,you will find the one that fits you,and your needs.
Good luck.
PS,don't let anyone talk you into getting a little "girls" gun. Some people don't think females can shoot the same "big boy's toys" as the men do. I just taught my older sister to shoot several weeks ago. She had never shot any type of gun in her life,until then(she is around 60yoa). By the end of the day,she was shooting good groups with a G-17,9mm,Baretta 9mm,G-23C,.40cal.,and even my G-20,10mm. So,don't let anyone tell you that you can't shoot something. Try it yourself.