Here are a few bullet points for further consideration:
Jim Calhoum exploiting a loophole that allowed him to pay the AAU coach of three top recruits he was targeting by organizing neutral tournaments and using the money obtained to pay the coach, it was such a black eye for the NCAA that the following year they changed the rules to do away with this, by the way Calhoun got two of the three top recruits (one was Rudy Gay).
http://cbs.sportsline.com/print/collegebasketball/story/9014921
Auburn’s disclosure (or should I say enclosure) agreement with Terry Bowden, he was paid $620,000 for keeping quiet and the evil troll also protected a $825,000 lakeside home and two cars.
http://sports.espn.go.com/ncf/news/story?id=2285976
Willie Williams recruiting diaries
http://www.yaleherald.com/article.php?Article=2966
The University of Tennesse’s major which was madeup of 95+% football players, don’t have the link for that one.
And don’t forget UGA’s Jan Kemp and the whole Tony Cole/Jim Harrick/”How many halves are in a college basketball game” situation.
Look up the patterns of handslapping to former criminoles such as Dan Kendra, Sebastian Janikowski, Lavernues Coles, Snoop Minis, Adrian McPherson, etc etc. This is really a topic in itself.
Well this list can go on indefinitely, but these are the ones that stand out in my mind. Also consider addressing situations where the NCAA ludicrous rules end up hurting the kids, for example when Utah was put on probation because Rick Majerus offered hamburgers to some players during team meetings
http://msnbc.msn.com/id/4087096/.
Hope this helps, this is a topic that's just packed with factual evidence.