From a Fantasy perspective Farve's situation is compelling (or fustrating), his team is much worse than it has been in recent years, which will make him a somewhat more inconsistent fantasy play. However, his team's woeful defense could raise his fantasy value because he'll have to chuck the ball down the field more than he used to.
That said, I think Farve is better than merely a "match-up" play, but he will be inconsistent. On the whole, I think he'll more good than bad. And he'll give fantasty owners a few very good games.
Eeech, this post is a little rambling, but I think I got my point across.