I hear Radio Shack will be selling the Accurian tabletop HD Radio for $99 on Black Friday and the weekend. Quite separately, (and not through RS) the Sangean HDT-1 is alleged to be available commercially by Christmas.
Don't expect the Accurians to be in stores, though...the top few thousand RS outlets might have them but not the rest. Call ahead or just order off the website. I have seen the Boston Acoustics Recepter HD in RS stores, though.
I have heard from reliable engineering sources that both the Accurian and Sangean radios are pretty good. The Accurian's speakers leave something to be desired, but it should be a good kitchen radio (it doesn't have an alarm clock so not much good for the bedroom). The Sangean supposed has lots of nifty little engineering/techie indicators of signal-to-noise and whatnot that'll make the geek in you very happy.
Methinks I'll have myself a nice HD Christmas this year!