I thought Stiemsma played himself into a three year $9-10 million deal by the latter stages of the regular season (Joel Anthony type contract but with less years, project center with good potential as a backup C). He sucked in the playoffs (mostly due to injuries) so that figure should come down a bit. Maybe two years $4-5 million.
Anyway, I think he'd be a good price anywhere in that range. I'd give Stiemsma $2-3 million a year to be a serviceable backup with the potential to be a high end backup if he improves his fundamentals some.
However, I don't see the value for Minnesota though with Pekovic + Darko already there. I wouldn't give a third string center more than the minimum. But hey, they are the same team that gave Ryan Hollins $7 million over 3 years to be a third string center a few years ago so they might just do that again.