Well, to be honest if i had to do it over again i 
would not have tried to pinch pennies and would 
have made a serious investment into my scanner. 
Thats not saying what i have is underpowered. 

If you go with the major manufacturers, you wont 
go wrong, top four in my mind are umax, hp, 
microtek and epson, in no particular order. 

One important thing to consider is interface, get 
as fast as you can, thats USB2 (not USB1.1). Or 
firewire, maybe scsi but that can be tricky 
setting up if you dont know how.
I have a USB2 and it zips right through a scan 
like crap through a goose.

But the thing that would make me shell out 
serious money is the flatbed size. Most scanners 
come with a 8.5x11 or 8.5x14 bed size approx. I 
would consider with 20/20 hindsight getting a 
corporate type scanner, those have bed sizes of
a whopping 12x17 plus with resolution up to 
1600x3200 dpi, and thats not interpolated. 
Imagine scanning the larger cels without having 
to stitch them together, droooool. Unfortunately 
they are VERY pricey, about a 1000, but if looked 
at as a four/five year investment it doesnt look 
so bad, kinda. (whincing at my wallet) I havent 
seen any with USB2 yet but alot have firewire for 
the speed.

Thats my thinking aloud for what its worth, hope 
you find what you need. Best wishes to ya.

Happy Lainning ^_^x