>>Anyone have any good ideas for this? I need to display hierarchal data in the browser...
>
> Try check this site out. They have some neat stuff. http://webfx.eae.net/

I've been a loyal visitor to WebFX for a long time (along with several other sites dedicated to DHTML). Erik Arvidsson is definitely among the elite DHTML developers. Be sure to check out the webboard along with the widgets.