If you haven’t seen the CSS hover effects at atebits, SimpleBits, orHandcrafted CSS, fire up your copy of Safari and set your mouse a-sniffing for links. This kind of subtle animation adds warmth to the experience, I think. These experiences, anyway. These effects could be made to evoke other feelings.
The first idea that jumps to mind is … suppose some element on the Drama or Powerhouse sites was suddenly bathed in a bright spotlight. What examples can you imagine?