I'm excited too. If it starred anyone other than Robert Downey Jr I'd be less so. Of course, my excitement about IM is much less than my excitement about Redbelt.
I'm seeing Iron Man on Sunday, but what I'm really pumped about is Prince Caspian (the second Narnia film for those of you who live under rocks). I plan to see that the day it opens at some point.
I say this as a big Spider-Man and Sam Raimi fan...
Iron Man is the best Marvel universe movie so far.
Batman Begins still reigns supreme in the superhero genre though, and The Dark Knight trailer that was before Iron Man was awesome. Heath Ledger's Joker is believable and scary (and scar-y).