I'm trying not to get caught up in which players fit a 3-4 scheme just yet - one, because I'm not a defensive genius (I know running backs, mostly), and because I'm currently inclined to leave that assessment to Messers Capers, Thompson and McCarthy. I like what Capers had to say about transitioning from 4-3 to 3-4, and I'm inclined to believe McCarthy when he says there's some variation to be had w/in a base 3-4.
Vilma didn't excite me that much even before the DC hiring and scheme change - hasn't seemed like the same player since he was hurt a couple years ago. I know the scheme switch in NYC didn't help, but he didn't stand out a lot this year.
Peppers is intriguing to me, but I'm not sure that he's a better get for the Packers than someone like Bert Barry. Seems to me that we could get more mileage out of 2-3 signings at that level than we could with one big signing like Peppers, but I don't think I'd be upset if we somehow got him.