Convert cellspacing and cellpadding to CSS equivalents.
IMO (dtbartle), keyboard thing on front page is way too big - reduce or remove.
Make RSS and ICS feeds more prominent.
Replace /events with a web-based calendar?
Replace all email addresses with generated graphics?
Possibly rewrite web page build instructions.
On media pages, get rid of trailing comma.
Replace <br>'s with <p>'s wherever it makes sense.
Replace <strong>, <b>, <i>, etc... tags with CSS.