Iggy re-signed? 

 I can't find any confirmed info about that. Nothing on TSN nor on the Flames official site, where it's just mentionned that he 
may sign for less than market value to help keeping Kipper, whose contract will be negociated later on, when he'll be back from Finland. (more details on the 
Flames' site)
For Owen Nolan in Calgary, it's a 1 year deal at 2M$, including bonuses, according to 
TSN
As for Regehr overpaid 1/2M$ per season...you may be right on this one, batdad, but it allows to keep him for 5 more seasons. Who knows where the cap will be in 5 years? Going crazy like it did over the past two seasons, being overpaid half a million actually would mean being 
underpaid one or two millions during the run of the contract, so it sounds like a good deal to me. At least on the long-term.