Bronica SQ system
Formats? Oh yeah, 6x6, 6x4.5, 35mm, 35mm panos(3 frames long i think) and polaroid.
Lenses are cheap, but still sharp and contrasty. 50mm/80mm/150mm can all be purchased of KEH.com for under 200 in good condition.
The bodies are great, cheap, durable, small and light. You can do double exposures, lock the lens open, sync at all speeds and have a bulb mode. You can get metered view finders, though a nice hand held meter is always preferable.
For a perfect setup you are looking at like 250-400us. As for resale, they have already hit rock bottom, you can't go too wrong. The camera will also last you for the rest of the life of film. Get it.