Your pitching apppears to be a strength, though neither Sabathia nor Oswalt have gotten off to the strongest of starts. It's a matter of when, not if they correct themselves and become a major, major plus along with Zambrano and Beckett. Cueto seems poised for a run at RoY after only a few starts. It's clear that you've given up on saves which, as you said, is okay in this type of league. Marcum, Billingsley and Westbrook all are excellent depth options and will become expendable once the season becomes more established.
I like Towles catching because I think he's going to quietly emerge as a productive hitter this year. People are really low on Helton these days and he still offers a .300-15-80 in the worst case scenario. I have no doubt that Cabrera will come around although I'm quietly praying for the sake of my Indians that he doesn't. Yunel Escobar seems like a great depth choice who will score a lot of runs in the Braves' lineup. Berkman is remarkably consistent and you can count on .300+-35+-100+ out of him.
My only concern is your outfield situation featuring Hermida, McLouth and Dye. I'm not so sure about Keppinger and Young on the Bench. Furcal seems to be your only truly formidable SB option. I'd look to the WW for some easy steals for the outfield. Seeing as how Hermida and McLouth have not truly broken out and Dye is a year removed from an exceptionally productive season. it may be a cause for concern. I can see Dye rebounding somewhat, but your offense is not strong enough to shoulder two young, unproven outfielders.