We've only seen Leather, Dovahkiin Armor, and Elven. As far as PR goes, it's not really useful to show a disjointed piecemeal armor set. I'm also fairly certain it's said somewhere, in direct response to armor sets "This isn't a Fallout game, so what works there doesn't necessarily work in The Elder Scrolls".
That said, I have heard that each race has had armor specially made to fit their now-unique shapes. That's a circumstantial piece of evidence for "Whole suits", but by no means a confirmation either way. According to the IGN interview though, there's more Armor and weapons, and more styles, than Oblivion. Not surprising with the small army they've assembled.
Here's the exact quote as it appears in the interview
IGN: As compared to Oblivion, will we see roughly the same amount of armor sets and weapon types in Skyrim, or will the number be drastically different? Will there be new sets that we haven't seen before, and what influenced their design and appearance?
Todd Howard: There's certainly more, but I haven't gone back and counted. Many of the classic Elder Scrolls ones return, but even something basic like "iron armor" gets a design and look that fits within the tone of the game and the environment of Skyrim. We do the art design with the assumption that the basic stuff was made in Skyrim, and the exotic stuff like Elven was made somewhere else.