Everyone should read "Naked Economics" by Charles Wheelan, it's a great easy read that explains basic econmics for the layman but its not so dumbed down that its unreadable.
I feel that Greenspan has done what's best for the economy when he can, of course since he holds his office so long (14 years, i believe) it doesn't particually matter who is president or that's the theory. So let the conspiracy theories roll on but the economy will keep trudging along till doomsday.