Note: My femBarb is just an alt, so take my advice with a grain of salt, in no way am I an expert. If someone else contradicts anything I say, listen to them, not me ;)
That said! I'll get you started off, and hopefully not too ineptly. That kit doesn't look too bad for 3m, btw. =)
Your amulet is a high priority for replacement, and make CritC a priority on it, you need those crit events to help keep your fury up.
I always like, with any fresh 60 character, to snag a cheapish Litany + Wailing Host set for their first rings, just to get a bit of CritC out of the way until they can get better. Litany's AR always comes in handy for a fresh 60, though later it's good to cram damage stats onto rings instead (though my Atalanta isn't quite there yet, still using a Litany).
If you were to get some CritC on your 2nd ring, you could replace your IK helm with a cheap Mempo, which is great for survivability and not terrible for damage, either. Load up your pants with survivability stats rather than damage, as well, until you're geared enough and have the gold to go for more damage-oriented pants.
Your hp is a little low, and you appear to have 2.8% Lifesteal. You're probably already aware that you'll want more than that at some point. If you're having problems staying alive, it might be a good idea to use Bloodthirst over Brawler until you can afford a Lifesteal weapon. Brawler really is a blast, though.
Raging Koala's sticky at the top of the forum is absolutely amazing. So many great guides there, as well as important things like IAS breakpoints for various attacks.