Well, over a year later, I fired up the system today and gave it a good run using the natural gas burners. I hosted a brewday for my homebrew club (http://www.brewcommune.com) and we brewed up a 1.5 BBL batch of an old ale. Unfortunately I didn't take any pictures of the brewing session. For the most part they probably wouldn't be much different than what is already posted. Other than a problem with a pump during the sparge (and thankfully I had a spare around), everything went as expected. I think it's safe to say that 140 lbs of grain is the maximum amount I can cram into the mash tun.
Not sure what (or when) is up for brewing next. Hopefully it won't be another year.