David,
I am a big fan of metal on a field camera. When there is any kind of wind, the extra stability of metal standards is worth the extra weight. I have several 4x5s and one 8x10. The camera that I use the most is a crown graphic that I modified—mostly removing extraneous stuff, like the rangefinder and the view finder. The bellows is long enough for 1:1 reproduction with my favorite lens, a 150mm g-claron. Movements require time consuming work-arounds but most are possible, one way or another. I haven't ever passed on a shot because of lack of movements. I love it that several lenses I use with it can stay on the camera, fully folded. My whole kit (camera, five lenses, two roll film backs, eight film holders, filters, meter, focusing loupe, spirit level, dark cloth) fits nicely in a small backpack weighing about fifteen pounds. The camera cost, if I remember correctly, $200 on ebay. It came with a dodgy lens but I have since converted it to a pinhole shutter.