For Iginla's destination, you need a team with cap space and a decent chance of making noise in the playoffs...
Anaheim has cap space (but an unknown internal budget) and needs to replace Selanne. If he goes there, it might be too tempting to punch Kesler in the face every day.
Colorado has cap space (but an unknown internal budget) and Iggy's old buddy Tanguay. Re-signing Stastny and O'Reilly will eat into the budget pretty quickly.
Arizona has cap space (but an unknown internal budget) and Iggy's old buddy Doan, plus a bunch of owners who are from Calgary. They missed the playoffs last season, but with Vancouver in decline; Calgary in rebuild mode for at least one more season; Edmonton being Edmonton; and San Jose possibly making big changes, the Coyotes have a good chance of making the playoffs for the next couple of seasons. It will still be a tough Division to win in the playoffs with all roads going through So-Cal.
The Rangers have a ridiculous amount of cap space (thanks, buyouts) and just went to the Finals. They're already on a quest to get a Cup for Lundqvist, and Sather is never shy about throwing big money at past-their-prime players.