Like the other guys said, it's not a difficult job. But it is a heavy, messy job. I did mine, by myself, with just basic hand tools.
The vital equipment you'll need are a hydraulic floor jack with a large lifting pad, 2 sets of jack stands (one set for the car, and one for the rear end housing), larger metric sockets and wrenches (15 thru 19mm), a hammer for driving out the control arm bolts, penetrating oil, and a breaker bar or pipe for increased leverage (if you don't have impact tools).
I kept my old braeks, and left all the lines intact. I just pulled the axles, removed the backing plates, and hung the brake assemblies up in the wheel wells with wire. Then I unbolted the lines from the old housing before removing it.
I highly recommend pulling the axles from the housings. That'll make them about 50 pounds lighter, and easier to move around. A helper is not necessary, but will make the installation of the new housing go much quicker