Indirect heat via a lump charcoal fire in the fire box is the ONLY way to do it, IMO. I soak wood chips, then wrap them in little foil envelopes that I've poked holes in the top of. Throw one of those baddies on top of the coals in the firebox once an hour and you're smoking like a mofo.
BTW, I've found that my temperature guage is off by about 50 degrees. It indicates cooler than the interior of the smoke chamber really is. I've started using an electronic thermometer with its lead stuck down the top vent so the thermocouple can hang freely in the smoke chamber. I get MUCH more accurate temperatures that way, which has resulted in MUCH better smoking experiences.


