Not really anything new to add but take a look at any decent martial artist, especially the likes of judo, sambo or aikido. They way they move, their posture and the way they carry themselves.
Lots of dynamic movement on their part but with the right kind of intention behind it. I know this sounds like a bit of a wishy-washy point, but I found that keeping this sort of thing in mind while lifting has deffinate benefits.
Also look at how straight these sort of fellows stand, strength in their backs etc. I don't think I really need to make mention on this but back strength both upper and lower has as much to do with this as anything else.
I also believe that breath regulation for heavy lifts like the squat and deadlift, and the olympic lifts does a heck of a lot more for core development than say a swiss ball.