Looks solid to me, man.
I'd say your weakest position is either starting QB or RB overall, and I'm entirely nitpicking in saying that because I think Schaub is likely to be a top-5 QB if he stays healthy and I think Turner is a solid if unspectacular RB1 as well. (Could see depth problems behind him at RB if Brown ends up splitting carries heavily coming off of surgery, etc.)
More likely though, I think you're going to be dealing from a position of strength with so much depth at WR and with Flacco behind Schaub at QB -- so that when someone else needs injury help you'll be able to add mid-season with good trade leverage.
I think you've got a good team, basically.