After many, many hours of thought and gnashing of teeth, I finally pulled the trigger and bought a Big Green Egg. Based on many recommendations (including I-SIG), I searched and searched and finally found one on the Bay. It's brand new and it's the large model. I'm picking it up within the next few days and I think I'll grill for the first 24 hours straight. Been a while since I've been this excited over buying something that doesn't have Polk or Adcom on it.
I'm still thinking to myself - $550 is a heck of a lot to spend on a grill, but I'm really looking forward to trying this thing out. Thanks I-SIG for the recommendation!
Happy Grilling All, summer's just around the corner!