Welcome to Nikonites.
I would suggest that you get a new D3300 with the kit lens, it is quite affordable. Use it for some time, then you will get a feel of what you want to do, or if at all DSLR is your cup of tea. Also download Capture NX-D, shoot RAW and learn how to use NX-D. Once you are familiar with both the camera and the software you can go ahead and get a body that will suit your style.
D7000 may be inexpensive, but it quite old technology, so the sensor is smaller, speed is lower and video so-so. A refurbished D7000 without lens will be as much as a new D3300 with a kit lens, which is faster, has fantastic video and a much better sensor and high ISO.