Zip file available here:
http://www.princeton.edu/~cbowl/bz2004/Buzzerfest%202004.zip
Based on both my editing intentions and the comments I recieved, I
believe this set is a pretty good example of a mid-level difficulty
set (between ACF Fall and ACF Regionals level) which might be a good
reference point for difficulty when writing or editing questions for
standard college circuit invitationals.
Feel free to mirror the file, though I just ask that you attribute
proper credit for the set.