According the beat writer for the Golden State Warriors, the Spurs are asking for a first round pick for DeJuan Blair:
Personally, I think that the Spurs should definitely hold out for a first rounder for Blair. While he has his faults, he can produce. On a mediocre team like the Warriors, he'd probably do rather well.The Warriors would have an interest in San Antonio big man DeJuan Blair, according to a source. But the Spurs want a first-round pick in exchange. Not only do the Warriors not have one they can give, they wouldn't give it anyway. If the price comes down, GSW would check him out. He's not the athlete they want, but he'd bring the toughness and physicality they need
Eventually the Spurs may lower the asking price to a second rounder but that's not enough right now. Blair playing out his contract is worth more to the Spurs than a second round pick. Maybe if the Spurs land another big and Blair's no longer needed even as insurance, S.A. can reassess the situation. But for the time being, they really shouldn't trade him for less than a first round pick or a comparable player.
Overall, this is good news. The Spurs are still dealing from a position of strength with Blair and aren't simply trying to salary dump him somewhere. It now seems like at worst, the Spurs could eventually find a taker for a second round selection ... which is much better than releasing him for nothing.