To pop to UBJ out of the UCA you'll want to put your coilover/strut back in there and let the suspension hang. Smack the spindle with a big ol' hammer and it'll pop right out... Usually. Make take a few smacks.
As for pressing The ball joint out of the spindle... That's a bit of a pain. I had to get crafty with the Autozone UBJ press tool, some random pieces of metal, and a 35mm socket...
Let me know if you have more specific questions... It's not a tough task, just kinda a head ache.