If you're going to be doing any sort of raiding I'd suggest you hit up Dire Maul West for the Distracting Dagger off of the Prince. Weapon skill is a huge factor in doing high damage to boss mobs.
http://www.wowwiki.com/Formulas:Weapon_Skill for the details, but basically versus level 63s, each point of weapon skill is roughly 1% more dps - it's incredibly powerful.
http://www.wowwiki.com/Formulas:Weapon_Skill for the details, but basically versus level 63s, each point of weapon skill is roughly 1% more dps - it's incredibly powerful.