Really depends who's out there. Kim is in Korea now and has injuries up the wazoo, but if he looks like he might return with his old velocity he is a great pickup. Don't see that happening in the near future though. Cruz could be pretty good but I'd check the wire for better relievers. Look for Gregg in Anaheim and Madson in Philly if they're available.
Oliver Perez watch
3-3, 3.74 ERA, 1.15 WHIP in 10 starts
23 BB, 8 HR and 72 K in 65 IP (9.97 K/9)
2 complete games, 1 shutout