Piss easy job to do.
Crack the axle nut (big socket and breaker bar)
Jack the car.
Remove wheel.
Disconnect sway bar.
Disconnect tie-rod form the hub (not always required, but give you more room to work)
Disconnect hub from lower control arm.
Knock the retaining pin out of the inner CV shaft where it meets the gearbox.
Should now be able to manouver the hub outwards enough to slip the cv joint out of the hub and then remove it from the gearbox.

Now, depending on the condition of the CV, replace the boot and repack with grease or swap in a new CV and keep that one as an emergency spare.

This is just off the top of my head so I'm sure someone here will come along shortly and slam me with my mistakes.

EDIT:
This guy does a far better job than me.

http://legacygt.com/forums/showthrea...le-108975.html