Aclcualtion: Do lots of meaningless but impressive stuff with numbers, so others will believe your ideas. Most often used as a preemptive strike to make certain noone will dare argue with your ideas. Closely related to 'statistics' and often used together with CAPS and expressions like 'so it is no more than logical that... (I'm right)'.
As an Enh. Shammy I need 341 + hit. But that's because I'm dual wielding. With the precaution that I don't know anything about druids, I'd say that you need the same + hit as for wielding a two-hander at least. My guess (and a guess it is) would be that you need about 250 + hit. But Eletist Jerks is bound to have an easy-to-find number for +hit somewhere. Just use that without all the aclcualtions behind it .