I'd recommend anyone interested in Orcs & Goblins or competitive Warhammer in general to check out the O&G Special on Podhammer - the first and best Warhammer podcast.
For this episode, Jeff is joined by veteran O&G player Sean Myles to talk about the army and how it's changed in the new edition. They mentioned that they've only played about four games total of the new edition so a lot of their ideas are unproven. As I've played about twenty games in the new edition and done quite well with the army, I might have a thing or two to comment upon once time allows.
Until then, listen to Podhammer. It's really a great show.