People always ask me about coffee roasting in my adobe oven. Here is a great primer video on the stages of coffee roasting.
You can even roast coffee in a simple hot air popcorn popper. Does coffee really taste better if you roast it at home? Imagine the difference in taste between a grocery store tomato and one that just came out of your garden. You bet it tastes better.
Want to try roasting on your own? Go to Sweet Maria's. They sell some of the best green coffee in the world anywhere from $5 to $7 per pound. It can't be beat.