Well, now that I've resolved the thermometer wackiness issue, the faith has returned. It's just more time than I can invest this weekend, though, to brew another batch. Maybe next weekend...
I'm not so much worried about the low gravity of the stout, as I am with the fact that I put about 42-43 IBUs in there, and I don't want all the roasty goodness to be squashed by excessive bitterness. Live and learn, I guess. For some reason, I only ended up with a little over 4 gallons in the keg. I really have to get this volume thing figured out as well. Of course, my boiling equipment leaves a little to be desired, hence the reason that I'm exploring keg conversion options.
Thanks for the support, and one of these days, I will meet with AG success!