I really love what they've done with Slark's voicework. The only thing that could possibly make it better for me is the inclusion of the classic "Aaaaaughibbrgubugbugrguburgle!" murloc battlecry when pouncing. That sound always gave me a mini heart attack when leveling on shore areas with my low level mage. Though I'm guessing it's a copyright thing, so no chance of getting it implemented...