Wow, thanks for the links.
One of the reasons I like grinding my own right before making it is that there IS a difference in the flavor...I'm nearly down to making one cup at a time....;-D
If you start roasting your own, you will likely be corrupted by the quality. :D And the cool thing is it costs less than buying roasted coffee. Better quality, cheaper price, what's not to like?
Sweet Maria's has a lot of info on the process, growing areas, roasting stages, that sort of thing. I bought a home roasting book, but found there was a lot more info on the web. There are probably lots of other sites you can check out.