Yassou
Commercially there is FxScan from IOSpirit which I use with my agfa snapscan 310 and there is also Betascan which is on aminet. FxScan can use the betascan drivers which is how I have mine set up. FxScan has a good interface and also has OCR which is not that quick but does the job quite well.
My advice would be to check out whether betascan, fxscan, scanquix, etc. have the driver for your scanner first.
cheers
billy
