That Nikon scope will probably work fine for you. The magnification range is just right for what you plan on hunting. You may also want to consider the Zeiss Conquest, Leupold VX-II or VX-III and Bushnell Elite 4200. The Zeiss Conquest 3-9x40 is my personal favorite. A 40mm objective lens (instead of 32) will offer a little better low light performance.

As far as mounts are concerned I'd recommend Burris Signatures (either dual dovetails or Zee rings), Talleys or Leupold dual dovetails. The Burris Signatures is probably the way I'd go.

And BTW, welcome aboard.