I don't recall if there was a shimmer effect on the weapons in D2:ED, but they did look better with the camera zoomed in (using target lock, or during cutscenes or conversations). Improvements to the graphics in DKS included the weapons and armour, though, so the closer camera only accounts for part of the difference.
The composer Kirill Pokrovsky has links on
his website to download a fair chunk of the D2:ED soundtrack, and more.