I personally think you should go with a 67 of any variety over square. This is my personal opinion since I see rectangular better than square. It's also easier when graduating from 35mm to stick with a rectangle. I love my RB67, but since that's not what you're looking for, I think a Pentax 67 would be nice. A reason I chose the RB67 over a pentax is that you have interchangeable backs with the RB. So if you're out in the field you can have a colour slide and a b&w neg of the same scene. Anyway, I think either camera will produce fine results... remember, it's not the arrow... it's the indian. -Grant