Back in the summer of 2007, I put together a list of contributed modules I was looking at supporting over our multisite installations: http://fraggles.artsci.wustl.edu/node/68
That has changed slightly over the past 2 years. Here's an updated list:
Also in Drupal 5 (or similar)
So, TinyMCE wasn't showing up in IE. Worked fine in FF - but threw a javascript error in IE. The reason? Apparently, IE won't accept a comma at the end of a javascript array. ARGH!
http://modxcms.com/forums/index.php?action=printpage;topic=25613.0