Chopper,
Saw looks great, but I think you misinterpreted the trailer. Danny Glover is not the psycho. He's tracking down a serial killer who nobody has ever seen. He leaves tapes where he is only a puppet. This film looks friggin KICK ASS! It's been getting amazing reviews since it's inital release at film fests earlier in the year.
http://www.sawmovie.com/This is one of the main films I'm looking forward to. Supposed to be gory "f**ked up" (as the film trailers say) fun!