For all of you BBQ Smokers out there.
Have you seen this?
I saw it on an Alton Brown BBQ special last night. Basically, it will convert your charcoal grill into a precisely temperature controlled smoker. One small pile of charcoal will keep the BBQ at 235 degrees for about 8 hours.
For something like a weber grill, you attach it to one of the vents at the bottom of the grill, block off the other 2 vents, dial up your desired temp, and lite a small pile of charcoal. This unit uses a fan to provide the optimal amount of airflow through the grill to keep the fire going a low temp for a long time.
They have adapters for Big Green eggs and other cookers as well.
It's a bit pricey and apparently they are swamped with orders now that Alton Browns show has come out, but I'll be the guinea pig for this one. I think it overloaded their website as it's no longer taking orders, but I called them up directly and placed an order this morning...