Diaw is interesting. He could be a good pickup to fill the backup PF spot.
Just checking his game log this season; he had a 16pt/16reb game against Miami, a 19pt/10reb game against NYK, and a 21pt/10reb game against Washington earlier this season. He has also had 4 15pt+ games and 2 20pt+ games. He's also had a good number of games with less than 5pts/5reb in over 25 minutes.
Bottom line is, he's inconsistent but capable; which is about in line with his performances from previous seasons. He's only 6'8" though, so he's not really going to help us at C. Good back-up PF though, who could fill in as a starting PF if Bass goes down.