This from WorstPreviews.com:
"In addition, the studio has also revealed that Kirsten Dunst will reprise her role as Mary Jane Watson. It was only recently that Columbia Pictures and Sam Raimi weren't sure if Dunst would be in the picture."
I don't mind her being in the movie, although I think there are so many other fine red headed flawless actresses out there in Hollywood land that could fill the shoes. But hey, as long as Spider-Man isn't saving her AGAIN I'm cool with it.