These were among the notable players moved before the NHL trade deadline Wednesday.
Columbus completed three deals, including one acquiring Gaborik from the New York Rangers for three players. Columbus (15-14-7) sits 11th in a tightly packed race for the Western Conference's eighth and final playoff spot.
Buffalo completed its fourth trade in three weeks by trading Pominville to Minnesota in exchange for goalie Matt Hackett and forward Johan Larsson.
Conacher, second in the NHL rookie scoring race, was traded by Tampa Bay to Ottawa for goalie Ben Bishop.
I think I'm lucky to be here and you definitely don't take very many things for granted, if you take anything for granted. I definitely put my family and my wife and my close family in perspective, that they're the most important thing in the world. I want to do whatever I can to play hockey, but like I said, under the right circumstances.
— Stars forward Rich Peverley to "The Musers" radio show on The Ticket 1310 AM in Dallas