If I was Danny, I'd give 9mil a year to Marc Gasol. He's improving every year, and is HUGE. Tim Duncan is struggling in the paint against him.
Good luck prying him away from the Grizzlies. A guy like Marc Gasol is going to get significantly more than 9 million a year.
Well, he's a FA this summer, and they're giving Zach Randolph 17mil. I don't know how it would work cap-wise, but if they extend Randolph they can't extend Marc for more than a salary-rise, kind of what happened with Perk and the Celtics...
I'm sure 4 year 40 mil would be a fair price. But the Celtics won't have the cap space, so it would take a trade at the deadline or summer of 2012. If he stays with Memphis, I don't think they'll trade him after what happened with his brother Pau.

By the way, he told to a Spanish news agency that when he was a child, his idol was Larry Legend. He'd look great in green, and we'd have the tough brother, hehehe.