I'll be posting walk cycles animated by pros and by students.
Here's an example of what you'll find there:
Max walk cycle from Cat's Don't Dance:
(I'm trying to post all Walk Cycles as Quicktime movies so it's possible to step through them frame-by-frame. The embedded Quicktimes tend to load and play better in the CHROME browser or FIREFOX browser. If the playback is too choppy download them to your computer to view directly in Quicktime Player for better playback quality)
I'll try to update it frequently. Check out the Walk Cycle Depot.