As I understand, the only Epson flatbed scanners that will scan 4x5 film are the 2450, 3200, 4870, 4990, V700, and V750. Is this correct? Will any of those models not scan 4x5 film? Have I left out any models that will scan 4x5 film? In terms of the differences among these models: * As I understand, the 4990, V700, and V750 have Digital ICE, but the other models to not--is this correct? What about the 4870? * Epson is releasing new drivers for Windows 7 etc. for 4990, V700, and V750, while the older models have to soldier along with either old drivers or third party software. Is this correct? * I realize that there are differences in the nominal resolutions, and by most accounts the effective resolutions--not interested in re-treading the debate about what the effective resolutions are. * Any other important differences? Thanks!