Every man is, more or less, the sport of accident.
--James Fenimore Cooper
One of the select group of twelve Bitchen Mathematicians

Zounds! At last we have photographs!
I'm also a charter member of the Atlas of Lie Groups Project, whose goals are to understand, classify, and catalogue the representations of semisimple real and p-adic Lie groups. A surprising amount of the work we are doing involves challenging combinatorial and computational problems--that's why I'm involved.
This summer (20-31 July 2009), we are planning a
one week workshop
in Salt Lake City aimed at grad students and postdocs, followed by a
one week
conference of invited talks.
I maintain an archive of my recent papers and a publication list.
I also have an archive of other papers (i.e., papers not intended for publication).
Students: You probably are looking for the Official Home Page for Math 216, or maybe this page, which has my office hours and other information specific to Sections 20 and 30 of Math 216 (Fall '08).
Here's a nifty example that was created with the posets and coxeter packages.
By popular demand, I also have created an archive of Research Data And Other Useful Stuff. To whet your appetite, here's a sample of the cool stuff you can find there:

The hyperplane arrangement corresponding to the root system A3.
The Lighter Side