I've done both mine as I suspected them being the cause of a speed related droning noise. Well, they werent the cause, but at least I can tell you how to do it.
Jack car up on axle stands, jack it up on both sides to relieve the tension from the anti rollbar.
Remove the plastic inner wheel arch lining
Remove the spongy thingy in the engine bay near the hinge on the side in question.
Unplug the ABS connector retract wire from engine bay through it's access hole and unclip/undo wire from its fasteners.
Using a plastic strip, fasten the wire to the upright so it wont get in harms way.
Jam the brake disc, or have a friend apply the brakes, and remove the driveshaft nut. Make sure to buy a new one before you start.
Remove calliper and brake shoe from upright, undoing the brake hose from the front suspension. Secure the calliper to the bodywork in order not to put any strain on the brake hose.
Unscrew brake disc retaining bolt and remove brake disc.
Remove the brake disc protective plate. It's held in place by 4 - 6mm bolts, be careful not to snap them.
Undo the steering rod end from the upright, then the lower, and finally the upper wishbone ball joint by means of a suitable ball joint splitter.
Remove the upright, complete with bearing and ABS sensor from the car.
In order to remove the hub from the bearing, one must support the upright as close to the bearing as possible, by using a pretty large hammer and a 32mm socket remove the hub from the bearing, using mild force and the aforementioned hammer ;-)
Now, the bearing will of cause separate, leaving you with the outside inner race stuck to the hub. Unfortunately it's not possible to chisel it of. Instead you have to use an angle grinder, and carefully grind your way trough the race until it splits, and can be removed by hand. Take care not to damage the hub.
Next you just have to unbolt the bearing from the upright, it's held in place by 4 Allen bolts.
Having removed the bearing, remove any rust inside the upright, taking care not to damage the abs sensor.
Fit the new bearing and torque it to 6 to 8 Kgms.
Here comes the tricky part: If you have access to a hydraulic press, refit the hub to the bearing. Of course using adequate tools in order not to put any stress to the bearing. IE supporting the inner race while pushing the hub into place.
If you haven't got access to a hydraulic press, you have to find a very long bolt, a nut to go with it, at least 12 mm thick and suitable sockets/spacers to support the bearing inner race. Put it through the bearing and hub and make sure that when you tighten it is properly centered, and any spacers you have found is staying well clear of the abs sensor.
Before tightening the bolt, apply copious amounts of engine oil to the bearing and the hub. If you cant make it go all the way in, do not worry, when refitting the driveshaft, and tightening the hub nut, it will make it the rest of the way.
That’s it, refitting is the opposite of the above.
Oh, and of course, before refitting the brake disc, make sure you have sanded the contact faces of the hub and disc properly.
Hope that helps