OK the tools u will need are either spanners or sockets in sizes: 12mm 14mm 17mm 19mm 22mm and 32mm
I suggest a big breaker bar or if you have it a rattle gun. Also you will need a ball joint puller (well really its a pusher LOL).
Some long nosed pliers to take out the split pins and a rubber mallet.
Step 1: jack the car up and pull the wheels off.
Step 2: you will need to turn the wheels to gain access to the bolts from the callipers which are 22mm, then proceed to take the calliper off (also you might want to undo the 12mm bolt holding the brake line on the strut for more length) and then u'll have to get that rubber mallet out and bash off the disc.
Step 3: take off the steering rack limiter (2x 14mm bolts) on the strut to gain access to the ball joint as to get a puller in there to pop out the steering arm. (you will need the puller as its bloody tight even trying to prop it up and then smash the crap out of it with a rubber mallet didnt work ** note when tapping all the studs out keep the nuts on there so u dont damage the threads)
Step 4: carefully remove the sensor from the strut it is also glued in there so be careful not to damage it whilst prying it off, then hang it up out of the way not to get damaged.
Step 5: undo the remainder of the bolts there will be 2x 19mm on the bottom and the 17mm on the top by the A arm, once they are all knocked out and loose also undo the 32mm bolt holding the hub on the axel. then give it a tap with the hammer to get it loose but dont knock it in more than 25mm / an inch.
once its all loose you might want a hand to carefully pull the entire arm/strut out of there taking particular care with the axel and the part the sensor reads because u dont want to damage that!!!
then once its out u can either push the bearings out yourself but i prefur to take it to a pro and get that done by them as they have the proper tools.