The first thing we noticed about the D5100 was that the body was nowhere near the same heft as our standard workhorse camera, the D90. It just felt... punier.
And then we took some photos with it.
The photos came out amazing. The colors were crisp, and we could even get away with usable (albeit super-grainy) ISO 6400 shots, which is certainly not the case with the D90's ISO 3200.