Thank you all for your good wishes. Before even reading the comments, I decided to go with DriveSavers. I figured any company that rescues data for both MIT and Barbara Mandrell has to be worth going to; then I saw that it’s discounting its services for people whose computers were ravaged by Hurricane Katrina, and that clinched it.
I do have a Mac, and, for the record, I scorn TekServe, as the one time I took my computer there it took over a month to get it back. I am now a faithful patron of Digital Society, which recommended DriveSavers to me in the first place.
Let’s all keep our fingers crossed that the FedEx plane doesn’t crash, shall we?