Logitech Z5500 is the best for me, best speaker for PC in my life .
In conjunction used with X-Fi Fatality Sounds card wooo, this thing rocks.
I used Z5500 for PS3 / PC mostly. PC / PS3 Games, DVD on PS3 is better with 1080p output.
i went to friend house watch Three Kingdon with regular dvd player runs those standard yellow component cable, the quality is damn sux lol.
When use with PS3 + Z5500, best combo in quality and shake my room lol. (Normally i on subwoofer volume to 70-80% only with Fatality sounds card bass level at 50%, it is already going to break my room ceiling and it vibrates hard.