"Seriously, if you're a big fan of coffee..."
Tell me more ...
Start here and step into the dark side...
http://www.coffeegeek.com/forums/coffee/homeroast
Roasting my own since 2003. There's no going back.
Here's my favorite coffee roasting system
http://turbocrazy.atspace.com/
I'm too lazy, but here's the place to go: Sweet Maria's - it's where I've been buying my green beans to roast at home for about 6 years.
I haven't bought coffee in a (bleh!) can in 30 years, and haven't bought roasted whole beans in 5. Starbucks is simply poor coffee, marked way up.
Do your own; as with most homegrown chemistry, it's better.