Let me start by saying that this is exactly the type of information I am looking for. Everyone has been great.
My wife does do 'some' sports photography. She also takes pictures of music bands on various stages in Southern California. Usually, they are of my band, but that isn't a bad thing.
Additionally, we have already had one of her photos blown up to 2' x 3' and is displayed on a wall in her office. It was put on canvas. Our goal is to eventually fill our home with her photos. We are planning to do some much larger photos (3 x 5 or a bit larger for certain spots in our home) in the future.
After my wife takes the first 32 weeks of her initial curriculum, she plans on taking another 32 weeks of the 'master' class.
Although I cannot promise that I will NOT buy the D7000, I may just stay with the D5000 for a while. My daughter REALLY wants a DSLR, so I could just hand her down the D5000 if necessary.
Thank you Brian for taking the time (as the other 2 have done) to assist a relative 'newbie' in learning more quickly. I appreciate the details you took the time to type out.