this depends on a lot. Is there damage to the hubs, do you also need new brakes, etc.
I did brakes, bearings, hubs on mine for about $180.00 myself. I am sure it would have been about 350.00 or better at a dealer or shop, but others can elaborate on that.
My bearings showed no signs of damage, I just had vibration in the right front wheel. In fact, they make more noise now than they did before (or maybe they are quieter and I am actualy hearing the tire noise?), I even pulled them back out, inspected them, regreased them and put them back in.