I got a bearing kit (code BRT990) from my local motor factors. This has two bearings, two grease seals and two hub nuts (one left hand thread and one right).
I basically followed the Haynes manual. The part I had a problem with was the fitting of the outer grease seal. To get a better purchase I fitted the drive shaft to the car first (by bolting the hub carrier, through the brake back plate, to the upright). Using one of the old grease seals and the trusty 41mm socket the new grease seal could be tapped into place.
The bolts mounting the hub carrier to the upright were tightened up to the torque specified in the Haynes manual.