The score might be "close," but we'll be ok as the game will never really be in question. I predict at least one blocked punt/FG against Vandy.
I think the USC game is more of a potential upset b/c USC is a better team, Spurrier is a genius, we'll have already clinched the SEC East (I'm taking for granted out win over Vandy), and our home field advantage will bring some extra complacency.