Shouldn't take all that long, but you'll want the lock plate compressor tool (about $10, and worth every penny) to make it go quicker.
Pop off the wheel, the lockplate, and I'm pretty sure you need to unscrew the turn signal switch assembly (but not remove) to get it out of the way. Then remove the single phillips screw that you see with wide head that looks like it goes through the "top" of the lock cylinder. Once you do that, it will pull out.
If you can see the wide headed screw through the turn signal switch, you may not need to even mess with the turn signal switch. I just can't recall since it's been like 4 years since I've had to mess with a column, thankfully.
I believe earlier was slightly different process than that, (depressing a tang on the cylinder or something?) but if both of your columns are the same vintage, that should be all it takes to pull one.