[edit: i keep checking out sites in the list using firebug. i'm not a ui person, but i am trying to learn. this looks complicated. is javascript inserting the images?]
One exception to the above is http://www.volll.com, which has some nifty JavaScript animations.
Edit: sorry, cross-posted with you.
div backgrounds are jpg's.
same for http://www.digitaldevotion.de/ and others.
ok, so it turns out very few are hella complicated. i'm really interested in figuring out http://www.mirasim.com/ if anyone has some tips.
[edit: nope. mirasim is also background jpg's in divs using css. ok. that was easy. pick a static layout and stick with it!]
An example of the opposite style is the giant pencil in the new stopdesign layout:
It's obviously sourced from real life, rather than generated from scratch.