I think we're saying somewhat the same thing. As to the bicubic sharper, that one is hotly debated. I personally use regular bicubic for most downsampling. Then again, as most of my workflow is digitally based, I rarely downsample....I just print at the native resolution.
I agree, most of the problems associated with scanning could be reduced or solved by using a higher quality scanner. But as most are using the Epsons or Microteks, downsampling does provide a valid reduction in aliasing effects. I notice this far less though on my Imacon than friends with Epsons! I rarely downsample at all....even with film scans.
By the way Chris, I won that auction for your book that was mentioned in these threads on Ebay. I should be getting it any day now.
All the best.