Frank: Ha, yeah, I think I'll hold onto it. Thanks for your help with the set-up, and for the feedback.
Ben: Damn. I downloaded what I thought was the latest update for PS5 on both my Macbook Pro and PC desktop with no success opening these files, searched the web and the Adobe site for information about whether 1Dx files could be opened with PS5 and saw (or sure thought I did) that they could not, talked with other photogs with 1Dx bodies who were using PS6, and surrendered to the upgrade (even though I was pretty sure the 1Dx was released before PS6 and figured that was reason enough PS5 had to be able to work with those files). Definitely had not run across what you've linked to, so thanks, that could be helpful to others in the same situation.
Bob: Well, you've got a few months on me, my friend, but I'm right behind you. Thank you.
Thanks for your help with the set-up, and for the feedback.
Thank you.