The Penguins have acquired Dominic Moore and Libor Pivko from the Nashville Predators in exchange for a third round draft pick in the 2007 NHL draft.
Pivko plays LW, so that is a good thing, though he's never played more than one game in the NHL (he appeared once in 03-04 for Nashville). He's 26, has size (he's listed at 6'3"), and is coming off of a season where he achieved a career high in points, with 70 (12 + 58). Previously, he'd never scored more than 31 in any season. He just came over to North America prior to the 03-04 season. I'd expect, given the Pens current dearth of wingers, that he'll get a shot in training camp.
Moore is slightly more intriguing. He played in all 82 games last year for the Rangers, and is another penalty killer that can chip in occasionally, notching 18 points last year (9 + 9). He plays center, however, so that can't bode well for a player like Maxime Talbot. He's also young (25), and has average size (6'0").
Overall, considering the Pens got both of these guys for next to nothing, I'd say it's a good deal for them. Moore will probably fill a grinder role and be a big part of the PK (Shero sure has been beefing up the PK, hasn't he?), and if they can get anything out of Pivko, then it's a double bonus.