If you want to tackle the job your self its really easy. There is a seal that keeps the inner wheel bearing in place, just pull that seal and the next thing behind the seal is the bearing, you dont have to press it out just tilt the hub upside down and the bearing will fall out. Now if you dont have a brass drift and a seal/race installer then removing the race which is what the bearing sits in will be a bit hard and installing a new one will be even harder.
PM me if you are wanting to barrow the tools because I have them and am in South Scottsdale and wouldnt mind helping a felow muder out.