Might be a good idea - dhuffman and I both own VW TDIs, so I am aware of his interest in the subject.
I wish there were more diesels available in the US. Damned hippies ruing everything. :-)
They're coming. At least from Daimler-Chrysler. I think others will jump on board in the next few years. As you know, ULSD was the hold-up, and we're getting it this year.