I'll just leave this right here...
All scans are straight scans, no sharpening. These are from the Plustek 7500...not sure what the exact differences are.
Even scanning at 3600 DPI, the Plustek outresolves the Epson, IMO.
If you can live with the limitations of the Plustek (no AF, no multi-sampling (?), manual film feed/frame advance), it's a decent scanner for the price. Silverfast SE has some limitations, you may want to evaluate VueScan to see if it would work better for you.
Ooops...just checked, the 7400 is only 3600 DPI hardware, so ignore the 7200 dpi scan. I would guess the 7400's 3600 DPI is close to the 7500's, but maybe not.
Hope that helps...
--Greg