The BBC's "Should I smoke dope?" with Nicky Taylor is better:

http://www.youtube.com/watch?v=0tHxi...x=0&playnext=1

They send Nicky to work at a coffeehouse in Amsterdam for a month where she smokes every day and they monitor the effects. They give her a series of tests before and after.

Theres a part where they give her pure THC through an IV and she starts freaking the hell out. Apparently pure THC without cannibinol and the other compounds is not very pleasant.