I used the Imacon Photo for years. I bought the Epson V750 recently.
I don't know your style, but if resolution and sharpness is the goal, none of them can compete with a digital file. Not even close.
I find the V750 with Silverfast to be barely acceptable. I got the same 120 color neg scanned at my lab, on a drum scanner, and compared to the Epson 750, it blew the Epson away in sharpness and shadow detail and overall look.
The Imacon software is very good with negative material. But make sure you can get a non-SCSI model; otherwise too much hassle.
Again, if smoothness and sharpness is your goal, if you ever go back and try to scan film, you're reminded of just how good digital files really are -- even a low end camera.
When I shoot film/neg, my new rule is -- send it out to a real pro, for a scan. None of these desktop models can compete.
Just one opinion.