Chris, I have a Nikon D3100 also...and I love it. Like you, I just opened the box up, started using it, and have gotten to a comfortable level for what I do with it.
If you are up to it, and in sync with all the WIFI stuff, the next level up has that feature, allowing for streaming your pix to the computer without any effort. For me, taking the memory card out and sticking it in the computer isn't too much trouble, so the D3100 is great and the price is right for an entry-level DSLR.
