My mistake I was thinking that second picture was the lower balljoint press
It's actually seperates the lower control arm from the ball joint carrier. You can do the same thing with a pickle fork.
Klann makes this tool for about $200. You can buy the identicle tool from
www.samstagsales.com as a BMW tool part# BMW3030 for about $100.
That tool in the second picture is used to seperate the tie-rods. Be careful they have a hex key on top to hold it in place you don't want to ruin that.
The Autozone press works fine. Put the new joint in the freezer over night and use a little light oil (WD 40) during installation. Take the boots off during instalation. The spring clip slips right back on when your done.
use a large socket or piece of pipe if you have any to hammer the old one out.
Danny