Yes another handgun is ideal, but sounds like you already have confidence in the 809c and love it..if the reliability is there stick with the 809c as your carry gun.
I would try another make instead of taurus in my opinion for a second handgun.I have nothing against taurus. I went to the store years ago to purchase a taurus pro millenium and when I handled the gun it did not feel like good quality to me. I really have no experience at all with Taurus. That was just an initial quick evaluation with out much credibility. There are plenty of options in your price range.
Check back later and i'm sure there will be some hangun recommendations for you to check out. good luck