I recently traded for a nearly perfect ethereal Ribcracker too. Can use some help with gear/skills selection, as I've never had a furywolf before. Well I hope you guys have the patience to read all this. Thanks!
Info from IAS-calculator
Character: Druid
Weapon: Stalagmite
Skill: Werewolf - Fury
Werewolf: Level 20
50% W-IAS will give a 6 FPA / 4.1 attack per second fury-attack. It also says "further IAS useless", which means that I don't need additional IAS from other items?
Skills
Werewolf: 20
Fury: 20
Lycantrophy: 20
Heart of Wolverine: 20
Hunger: (needed?)
Feral Rage: (how many?)
Grizzly: (I'd like to have one, 1 point and +skills good enough or would it be a waste of points?)
Items
Ribcracker
Arkaine's Valor (+2 all skills)
Jalal's Mane (+2 all skills - +2 shapeshift skills)
String of Ears
Dracul's Grasp
Gore Riders
shapeshift amulet/Mara's Kaleidoskope (+3 shapeshift/+2 all skills)
Bul Kathos' (+1 all skills)
Raven Frost
On switch: Gimmershred/Azurewrath and Tiamat's Rebuke (for physical immunes)
Merc
Holy freeze merc (when choosing Heart of Wolverine Spirit)
Might merc (when choosing Heart of the Oak Spirit)
NOTE: it's for PvM

NOTE 2: if you think the Ribcracker is better to use on a Barbarian, please do comment.
thanks,
Goldie