I normally download/buy the tutorials from here or from Digital Tutors.
The DT stuff is fantastic and so is the SM stuff. I would advise getting onto both sites and looking at them online (the free ones) and get a feel for them before you shell out any cash.
Chris (formerly R@nSiD)
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When the power of love overcomes the love of power the world will truely know peace - Jimmy Hendrix
Winner SM VFX Challenge 1
3rd Place SM SteamPunk Challenge (May 2007)