Another option, the 4x5 hand held "Guido-cam" (made by Guido in his former life as a wood worker). Chopped and channeled Pathfinder 110A, turned into a hand held 4X5. I won't post a scan of a print, as my scanner has the ability to butcher any picture (see my gallery for further evidence).

I've used it with grab shots and it works very well. Coated 127mm lens and just pre-focus as was stated already, pre-set exposure. I've used it with films as slow as 160 color print, nice lens coverage, lots of DOF and easy to use view finder. With Tri-x it is a blast.