Well, I don't want to spend $1000+ to buy a scanner, so I guess it's either e-bay, or an Epson. I wonder what the quality hit is in using one of the newer ones, like the V500 or V700, as opposed to a dedicated scanner. Since my original post I thought about all the 120 film I have also, and the 4x5s as well.
If the quality hit isn't too bad, I'll go that way, as I can do all 3 formats, If it's a lot worse, I'll probably do an e-bay slide/negative scanner and eventually get the flatbed for the other formats.
Thanks everyone for the advice, and especially the link to the better film holders.
An a700 and couple of a580s, plus even more lenses.