FS Author Nat Herz copied the link to this article during a FasterSkier email team-building session earlier this month. It is written by a guy that turned himself into a Dope in order to write about it for Outside Magazine.
I felt nauseous whenever he got to the details of the effects, and about injecting himself.
It’s from 2003, but if you haven’t read it, I suggest you do.
http://outside.away.com/outside/bodywork/200311/200311_drug_test_1.html