For those of us old enough to remember the glory days of Infocom, this comes as wonderful news. I really look forward to revisiting the game and seeing if I still remember how to win (probably not). As an aside, I'm pretty sure I still have a copy of the game for the Commodore 64 somewhere in my basement.
The board there looks fine for what you're talking about. But I'm still not a fan of the Celeron line, and since you're well below your price range I would consider spending the extra for at least a Pentium D if not a Core 2 Duo.