Sorry for the silence. Been meaning to figure out which of my spells have a duration of 10 min/level or even 1 min/level, because if we've got an hour to do this, than we're just blitzing this whole dungeon and anything that lasts longer than 15 minutes or so is a valid buff to cast at the start. 'Course, I have few buffs, and I think the only one I have on me that isn't a 1 round/level duration is Greater Mage Armor, which I'd have cast beforehand, of course. And Disguise Undead, but that's not really a buff per se.