Can I get some some confirmation as to how the ethnic makeup of Argonians and Khajits will be like in Skyrim? Are there going to be more than one ethnicity of each; will we see toad-looking Argonians and the human-looking Khajits as was seen in Daggerfall along with the many other types?

We don't know.

10 races are confirmed, so more than likely, you'll get 1 type of Argonian and 1 type of Kahjiit.

The same ten races available in Oblivion and Morrowind will be playable in Skyrim, but Bethesda had been completely silent on the appearance of the beast races so far. No one knows what they will look like.

yeah i thnik since they've been so hush hush about the beast races that they're going to be amazingg