We had seen tracks in the snow recently and were suspicious of what animal(s) left them. This morning (2/18/13) we saw two "cats" walking slowly around our fenced-in pool area (150 yards from the house).
They were nearly as tall as the middle rail on the split rail fence (there is much snow, so they stood taller than they are) and about half as wide as the interval btw the posts. I would equate their size to a young lab - a bit lower to the ground of course. They were both approx the same size - and each had a tail 1-2 feet long.
They were a light brown and moved very fluidly. They each burrowed under the mesh fencing (attached to the split beam railing) to access the pool area - scouted for 2 minutes and them left that area.
We were not able to get a picture and did not interact with them.