Hımmm. Your system pretty good. İf you want you can take down timing your memories. You could upgrade with phenom II soon. But maybe you should get a new mainboard.
When i listening music and playing game, the sound spoiling for a moment. İ also tried with headphone the damned problem repeated. İ re-install windows and install latest driver anytihing has changed. İ dont think so but, i bought a new vga recently. Can it effect this?
İ think the best choice creative s 750 7+1. İ hear the sound quality of s 750's is very good. You want a speaker for music and game so you could buy a s750. İf you say ' movie is the most important' when i suuggest logitech z 5500.
Especially, the phenom owners use it with amd chipsets. Why the nvidia chipset aren't common for amd? İ use nforce and i satisfy with it. And if i buy amd processor at the future i ll probably choose nvidia chipset again.