Thanks for the first two.
On the last one, it's something I picked up from these boards. Some talk about professors having to fail "x" amount of students to clean up the roster. I guess that could be a function of the curve they use (somebody has to fail). For a true bell curve I dont know how many people that would be. While I cant imagine being in that group, it might be helpful if there were some numbers out there to look at for each school.