Callahan will probably go for 4.5 million and 6 years at the most. Girardi would be an excellent addition to the Flyers team and then we would could finally trade Coburn. Girardi is a great first pairing defenseman who would fit perfectly in Philly. Girardi is arguably a top 20 defenseman in the NHL, so I'd say he would probably look for a contract of at least 5 million for again probably 6 years.
A great first pairing defenseman, sure, but we have no one to pair him with.