Originally Posted by sevo
You might want to consider purchasing the Polaroid version of the Universal, the 600SE. In my experience you can get hold of a complete 600SE for less than a instant back and 127mm lens for the Universal (the inverse is true as well, too - film lenses in 600SE mount are scarce and expensive).
Do they all take the same film? I don't know. I know little about the Universal except where it and the Super Press 23 share attributes, such and the accessories they use.
I do have the Super Press 23. The Universal/Super Press are indeed system cameras. You may well get addicted and go for some of the other lenses, backs, and other accesories. I have the 50mm, 150mm, 250 f/5, and a currently non-working 65mm, as well as the 100mm f/3.5. I also have the ground glass back, the cut film holder ground glass back with holders, and the extension tube set. It is a bit heavy compared to a 35mm kit, but not that bad if you are in good health. The 6x7 or 6x9 size negatives, and the versatility, make this a fun camera to use.
Speaking of weight, the 250mm f/5 is indeed a monster, but worth it. there is a 250mm f/8 that is much smaller, but it doesn't couple to the rangefinder.
Enjoy that camera, and I know you will.