-
Unless you were planning on hooking this thing up to your Kaleidescape, upon which you've somehow managed to rip some HD DVD or Blu-ray movies or something, you really shouldn't be concerned with the HDMI.
ENGADGET: Slingbox PRO hands-on
-
Both also give you the advantage of hooking your TV up to your computer (pending, of course, that it has DVI-out, and you happen to have a DVI-to-HDMI adapter, if necessary).
ENGADGET: The Clicker: HDTV buying - Part I, the basics
-
As far as connectivity goes, you've got three USB ports, as well as micro-HDMI for hooking this up to your PC.
ENGADGET