The Usurper: Now on to your 911 ideas.  The only area where I am even slightly interested is in the question of building 7 and how it collapsed.   It indeed does look (to an untrained eye) that it was brought down by explosives (much like we've seen on TV when witnessing an expert demolition.

But just because it appears that way to me, doesn't mean that it must have been that way.  Circumstantial evidence aside, what hard evidence do they have that the building was brought down by explosives?  I think the answer to that is none.  It's just a gathering of circumstantial evidence and speculation that fuels the theory.  If there were truly a "smoking gun" then you'd have something.  But now all you seem to have is a good debate. 

When all is said and done, I arrive at this:  even the experts can't agree on this one.  And if they can't agree, then an art teacher and part time musician from small town USA isn't going to figure it out either.