I just did this to my driver side '90 corolla LE automatic w/overdrive. Just to recap. Since this is a great thread!!
1. Remove cotter pin, castle nut and center nut (30mm). Center nut required breaker bar and my foot and full weight on the bar to loosen.
2. Jack up car and remove wheel.
3. Remove 2 - 17mm nuts and 1 - 17mm bolt.
4. Separate ball joint bracket from lower control arm. Don't worry, spring isn't under tension (I was skeptical about doing this myself, but I trusted the forums
5. I hit the half shaft stud protruding from the hub of the disc and pulled on the disc. Took a bit of finagaling but it came off.
6. Next yank on the half shaft to get it off of the transmission. Prybar definitely helped here!!
7. Get new half shaft and attempt to put the transmission end in first. Then hub end. The transmission end didn't go in so smooth for me. So I put the hub end in first and screwed it in a few turns. This enabled the half shaft to straighten up rather than hang down. The transmission end took a lot of time to get in. But if finally "snapped" into place after a bit of up and down left and right pushing.
8. Connect control arm to ball joint and tighten.
9. Torque center bolt 137 ft/lb.
10 Attach wheel and lower car and recheck torque on center cap with car on ground (not sure if neccessary but I did it anyway)
Part cost me $55 at Kragen with a $45 core that I just got back tonight. Simpler than I thought and happy that I did it and found this awesome forum!! Thanks guys!!