Thanks for all the info and feedback, everyone. I've got lots to look into now.
In the meantime, motivated by greed, lust, and wine, I bought a Speed Graphic on ebay. I don't know what I was thinking other than "that's cool" but maybe the comparitively huge ground glass will help me with my focusing issues. Not that I'd even attempt to use it for kids' sessions. LOL. That would be fun to watch, no?