I have held and used the Fuji 670 which seemed a bit bulky for only being 6X7 however the image quality is absolutly amazing in my opinion. The Bessa III is actually a 667 in fuji terms from what I can gather? or am i wrong on this?
The Voigtlaender Bessa III & the Fuji GF670 are exactly the same camera - only the names have been changed (and the Fuji has a chrome top). I am used to my Rolleiflex, and found the Voigtlaender really light in comparison. However there are some things to consider: the bellows obstructs the viewfinder image a tiny bit, and the shutter button is so quiet, there is no satisfaction in that :-) For a large camera, no-one really notices it though - not like they do with the Rollei.... The lens is sharp as a tack, as you would expect, and the meter agrees with my other meters. $2k doesn't seem unreasonable at all for a new MF camera (esp. compared to a decent digi SLR). I am not "in love" with the camera, but I can't really fault it in any significant way.
Seen a Bessa III, which is the same thing, it's smaller than I expected, looks much better in real life than in the pictures, and it's good job I'd already got my Mamiya 7, or I'd likely have purchased it.