B&W should not be an issue, getting a good scanner for both 35mm and 120 will be difficult at 200.00. A Minolta scan multi could do it for ~400.00 - 500.00 us. Polaroid made a 35mm-120 scanner that was, from what i've read and heard, pretty good, but I cannot personally recommend it nor can I remember the name. Some might be able to tell you that there is a flatbed out there that can do it, but I haven't used any that would be in that price range that can do 35mm well.