Use Different Settings for Gaming?

Hey everyone, I currently have a Samsung UN32ES6500F LED TV which I had professionally calibrated for watching TV and what not; it looks fantastic with movies and shows.

However, switching to using my Xbox 360 or Playstation 3, the settings automatically change to using Samsung's Game Mode (which based on my research and testing is necessary to providing a picture that keeps up with gaming's response time or whatever) and along with this, many other settings change.

Should I keep Game Mode and change all of the other settings to the one's similar to my professional calibration settings or does anyone know of a calibration that works well with gaming?

Right now with these automatically changed settings, the picture seems to be pretty heavy on contrast which is really the only negative I can find so far along with the fact that overall, it looks worse than my professional settings.

In short, should I use the settings a professional gave me for TV broadcasting/movies with my gaming or should I not (if so, any suggested calibrations for this model or any tips on how to get a better picture)?

Thank you so much for any help, CNET forums has been very helpful in the past.