Will one of you be able to trim your hours (or trim your commute) if you have kids? If not, will you be able to find daycare you are happy enough with to warrant your kids spending the majority of their waking hours there (60+ hours there, versus around 35 at home)?

That's a tough question to say. I can take the time off or go part-time, DH can't (or risks a foolishly generous pension plan). Affordability isn't really an issue, but he is the one who really wants kids and he is far better suited to being a stay-at-home. Plus it's hard to look at the missing cashflow and not resent it.

And will you have enough stamina to do the daily grind at work, then the daily grind at home, then possibly be up in the middle of the night with a baby or sick child...without it affecting your physical or emotional health? I know I couldn't, but that's just me.

Me either. Yet, many many people do it and I'm trying to get an idea if parenthood has been fulfilling for those people in some as of yet unseen way. So far, I'm getting the impression that it's yet another one of these things that there are fewer people suited for it than are not.