I just wanted to recommend Dave at Avical. He calibrated my Pioneer 6020 plasma. He was very knowledgeable and explained to me what all the settings did. I originally had my TV set to Game Mode as Movie Mode had "murky whites." Nothing just seemed to pop with Movie Mode, but after calibration those "murky whites" were gone and I'm using my TV in Movie Mode. After calibration my TV measures higher brightness (31.3 FL vs. 25FL previously) which results in better detail!
Dave was also able to change the settings so my sidebars would be black. The user menu would only allow you to choose between gray and variable sidebars.
Overall this was a great investment and I could clearly see the changes. If you live in Southern California, I would highly recommend Dave at Avical.