I was just talking yesterday about how I wanted to wreck my finances and buy a Big Green Egg. The ceramic of the egg holds the heat very efficiently, giving you temperatures upwards of 800* allowing you to grill, smoke, and even cook pizzas. Unfortunately, the Big Green Egg costs >$1k generally.
I’m pretty pleased to have found instructions on building a DIY alternative to the Big Green Egg, the Little Blue Egg. Seems like you can build this thing for under $200 in about 10 hours give or take. Not bad at all.