VCT stands for vinyl composite tile. You can read more about it here.
Here are the two styles I am considering for the kitchen floor:
1.7.12 Update: I picked the darker one (after some strong input from my colleagues at work). Most of the house has wood floors so I wanted something different in the kitchen. This is the type of tile you'd see in a grocery store, so it's very strong and durable. And it can be waxed! It's also easy and inexpensive to install, though the material itself is more than I would have thought. The darker one cost over three times as much as the lighter one (the difference amounted to a couple of hundred dollars more). I am happy with the choice. I picked up the materials this week. Installation is pending the drywall, which as I am writing this update will have to wait for some roofing . . .