9/11-Terrorists or engineered by BushCo?

Okay-I have resisted to the teeth the idea that 911 was no terrorist attack and was, in fact, engineered by our own government to further an agenda outlined by the New American Century, a group including BushCo, Wolfowitz and numerous others of the neocon ilk.
Their document is available on the web as is so much of everything one needs to make up one's mind about this tragedy and it's origins.
But this video is what changed my mind and made me see the events that morning altogether differently: http://video.google.com/videoplay?docid=-8260059923762628848&q=loose+change
This info does NOT sound like paranoid delusions to me.