I've noticed that when replying/editing posts the smileys jump around a lot as they're loaded. What about setting the size of them directly in the html?

Something like:
Code:
<img src="images/smilies/smile.gif" height=x width=y
(for each smiley ofcourse)

I think this would help on-the-fly rendering browsers (I use firefox) to give the smilies box the correct size and not jump around like it does now.