Why not get a d90 instead? The one major problem I see in getting the D5100 is the legacy support or lens compatibility, that itself is a major setback because you're gonna limit yourself on those expensive lenses because the body you're getting doesn't have any motor in it.
No offense meant storms, but if you have to ask, it's usually either one .
I haven't shot with a touchscreen. (Well, aside from my phone, but still...)
I would imagine it may get in the way more than helps, because shooting with SLRS that have more manual controls on the body usually help me shoot faster. For your first camera, if you still can't pick, I'd recommend the 5100 out of the use you'd get from the articulate screen .
I have a D5100 as well. Love that camera to death, shoot mostly with a f1.8 35mm prime lens. I would never buy a DSLR without a flip screen after using that camera, it comes in handy way to often, especially cause im short lol.
Good man im glad. You really dont need anything more than that and ill bet you got it for a good price to. I bought mine when it first came out at $900 =/. If you get more into it and start buying accessories like off camera flashes and so forth youll start to understand why Nikon is da shit.