Well, there are so many cameras out there that it's going to be hard to pick the "one", but you've actually narrowed down your search already without realizing it. You said that you would like to stay under $200, and purchase it from Best Buy, well that cuts out a lot of cameras that are over $200.
My suggestion is to just go to Best Buy and take a look at all the ones in your price range. I, personally, am a die hard Canon fan and just bought a SD750 because of it's small size and huge 3" LCD screen. It does everything I want it to do, and was recently on sale from Dell.com for $215. I paid $285 from WalMart.