Depends on your needs/output. Are you printing or just for the web, etc? If printing, how large will the prints be? Are you are printing from 35mm vs medium format? Depending on the answers, you may need a dedicated film scanner. The 9000 is your best bet short of a drum scanner if you need MF film capability. It is very large compared to other MF scanners, but the only one available new.
I only have the 9000 (excellent), so don't know about the film strip holders. You could search for the brand/part number online, and places like B&H Photo may say whether the holder works with which scanners. Nikon site may also provide info.
Good luck!