I was looking at Furrey this week myself. I think he's a good sleeper this week. He's put up respectable numbers against two of the best defenses in the league, and this week they play one of the worst. The Lions run game is certainly not established, he seems to be in a groove with Kitna, and, right now, he's not at risk of losing PT to anyone. As for the entire year, I probably wouldn't go too long into him, especially if they sign Porter, but I think he could give you some good production off the WW this week.
The other guy is kind of a reach.