Oh, and not 10 seconds after I hit submit on my last post, I found this:

http://archive.giant-bicycles.com/it...999&model=9514

So it seems to be a '99, though I can only find references to the frameset, and not a full bike. I've looked around a bit but can't discern whether the 99 ultegra's used integrated shifters. Regardless, the mystery will only really be solved if the poster gets back to me (and if history is any guide, that may not happen at all...)