I think I remember a setting in Finder's view options waaay back in System 7 that you could check to calculate folder sizes in list view. I usually left it off

I think I remember a setting in Finder's view options waaay back in System 7 that you could check to calculate folder sizes in list view. I usually left it off because it slowed down my (68k) Macintosh, but it was great if you had a screamin' fast PowerPC!