Aim for 600, you'd be at almost 200 with an IK belt
If you're going to be using a WW build you'll want to get your movement speed to 24%. Most people do this with boots + Lacuni Prowlers. Axes and Maces give free 10% cc so most go with them. You'll want a lot of crit damage not so much cc since you get 15% for free (God damn Barbs), aim for 30%. Attack speed has its uses also since it makes your tornadoes tick faster.
Someone else can probably tell you everything else you need to know
600AR? How much HP should I look for? I'm guessing barbs normally need to have higher health since they are right in there taking every hit?
Also, what do you mean barbs get free %15 cc? Are you talking about a certain skills that gives you that?
Is there any other particular item I should look? I will get the IK belt for the set bonus and life steal, but other than the boots I don't see anything really great, and the set bonuses other then the AR aren't really interesting (could be wrong tho)
Andariel's Visage is really crazy as far as helms go. I can get one with high STR and resistances for couple hundred thousands, or one with a socket for about the same price as the most basic IK helm, but the AV also gives me attack speed in addition to CC
Boots - The IK boots seem pretty perfect with nice STR, VIT and movement speed and they don't cost a lot
I'm guessing the most expensive things as a barb are going to be my weapons? Are there any legendary/set weapons that I should look?