Thank you very much to all of you for your considered replies...you've given me much fodder for thought.
Sorry that I didn't mention any particulars about what I shoot or my anticipated use of the camera; primarily I shoot what I guess would be called the natural scene. My primary considerations when looking at any field camera is: weight and, more importantly, rigidity when all controls are locked down. It would be nice if it was "packable", but not essential. I care little for how beautiful the camera looks, rather I seek good tools that can get the job done! On the 5x7, it would be nice if I could use my 19" Artar with a little extra bellows for somewhat closer focus. I wouldn't expect to do close-ups with this lens, but I might want to focus on something closer than infinity!
Again, thank you to all, but I do wish to respond to a couple of posters in particular:
Amund - I've looked at the Shen-Hao FCL-57 mostly due to it's unique design. After all, I'm no stranger to rather unique cameras in that I own a Toho 45X (Roger Hicks knows about this one!) How solid is the Shen-Hao with longer lenses?
RogerH - I am in the U.S. so any Gandolfi is probably out of the running since our $$ is, what, like half the Euro now?!
To all who recommended the Canham, I am looking at this one very seriously. I've heard nothing but great things about their service and, besides, I'm not far from where Keith lives!

I'm also very intriqued by the fact that the 5x7 back can be removed and replaced with 4x10; a very useful format, IMO, for our beloved Southwest, rivers/streams/brooks, etc.
By the way, RogerH, as far as I'm concerned the Deardorff was the best 8x10 field camera available when I bought mine circa 1980. The best design? I think not. I can't tell you how many times I've had to "man handle" the rear standard to re-engage the focus track after it "jumped the track!" This camera is fairly rigid when everything is locked down, but it gets this rigidity mostly from it's weight. All that said, though, I used my 8x10 'Dorff exclusively for about 10 years and produced many wonderful images with this camera.