I too am a fan of the Agfa/Ansco folders, starting with a Viking 4.5. Make sure to check the bellows for holes. Nothing like ruining a good shoot with light leaks (trust me, been there, done that).
I usually don't even use a meter anymore with my folders, even when shooting chromes.
As for film, I'll shoot anything, even way out of date (1999) chromes. I used to think I wouldn't run anything in a camera that had an ISO higher than the fastest shutter speed, but one time I accidentally ran some T-Max 400 at 200, and liked the results (told the lab to pull it). Worked well on Tri-X, too.