I'm not a big fan of him, but Nocioni would be a good fit - the team is struggling to cover small, mobile 4s that play from the perimeter and Cleveland (James)/Los Angeles(Odom)/Orlando(Lewis) have that type of player; he'd also complement Daniels very well (adding versatily in terms of size/shooting to the wing rotation) - but he's very expensive.
Disregarding salaries and contract length, I'd much rather have Nocioni than Davis/Scalabrine/filler. The financial aspect of the equation makes me think that the better approach right now is to wait and see though.