So as I found out that the Epson Perfection V300 Photo who should be good for scanning films and film negatives under Linux it was my choice. And expecting it in the coming week.
I will keep the progress updated and plan to present the first free pictures of a V300 (as Google free license search didnt get me one).
My suggestion not only to Epson is to exlicitly publish free photos of you products under Creative Commons licenses, so that documentations, web sites etc. can work with them!