Home roasting? DIY roaster build?

I've gotten to the point with tinkering around with things that I'm thinking about trying to do some roasting myself. I've done a bit of reading on it and found people recommending everything from a frying pan and a heat gun, to popcorn poppers (pan and air), to specialty machines. Anyone here do a lot of their own roasting that could share some tips for a newbie to this part of the coffee arts?