I just had my bearing replaced. I was going to do it myself but I needed a torque wrench capable of 200 + foot pounds of torque for the hub nut. Those are hard to find but you can rent them. The dealer did mine for 84 bucks cuz I had no time and tool. The hub is a sealed unit. No pressing needed. The whole thing is replaced.
I AM a mechanic, but one time I was on vacation in Utah at my brother's place when mine failed on my old Probe. So I replaced it in his driveway with tools that I had with me, and some of his. But I too needed a torque wrench, and so I just snugged them up good in his driveway with a ratchet, and then drove the car real easy over to the local tirestore (I brought the correct socket that would fit), and I had the tire guy tighten the axle nut for FREE!