I actually found this Craigslist ad, and in my researching the saw, came across this thread. I've been in contact with the guy for the past couple of weeks, but haven't been able to get down to see the saw yet (and might have just gotten beaten to it).

The saw is the model G1012, which is the cast frame 18". Looking back through my stack of Grizzly catalogs, the last one it was listed in was 2002, and it was $700. At first blush, $475 might seem slightly high, but he's got about a dozen blades with it (all 3/4" to 1-1/4"), as well as a set of the roller blade guides. What I found interesting is that the saw can take up to a 1-1/4" blade, which seems like you have to go to a 19"-20" saw now to handle that wide of a blade.

If the saw hasn't sold already, I'm hoping to check it out sometime this week.