Iguodala finished with 25 points, 11 rebounds, and 10 assists, and Andre Miller had 17 points.
Once a leading candidate to earn the most ping-pong balls in the draft lottery, the Sixers instead are talking about the playoffs.
The postseason is still a long shot, but thinking about it beats another dreary end to the season -- only don't tell that to Sixers fans who want their team to lose and get that No. 1 pick.
"Hopefully, I'll keep getting them angry if that's the case," said Smith, himself a former No. 1 overall selection.
Samuel Dalembert grabbed a season-high 20 rebounds, 12 on the defensive end.
Ray Allen led Seattle with 29 points, but the SuperSonics had their three-game winning streak snapped a night after an emotional 100-99 win at New York.
Cavaliers 101, Pistons 97 -- LeBron James scored a season-high 41 points, leading Cleveland to an overtime victory in Auburn Hills, Mich.
"If we play well, nobody can beat us," James said. "We believe that."
James led the way, but his team reached a season-high 11 games over .500 because the star had plenty of help: Drew Gooden had 22 points and 10 rebounds, Zydrunas Ilgauskas had 14 points and 10 boards, and Larry Hughes added 12 points.
James, who made three go-ahead baskets in the final 2 1/2 minutes, almost won the game in regulation with a 27-footer, but a video review negated the dramatic shot. He set the tone in the overtime, making free throws and blocking Richard Hamilton's shot with a spectacular move in front of the rim.
Hamilton scored 29 points, Chris Webber had 20 points and 11 rebounds, Chauncey Billups had 16 points and 14 assists, and Tayshaun Prince added 12 points for the Pistons, who have lost three of four.
Suns 115, Bobcats 106 -- Phoenix needed a career-high 32 points from Leandro Barbosa and 19 3-pointers to escape with an overtime victory over visiting Charlotte, sending the Bobcats to their seventh loss in a row.
Barbosa made a career-best seven 3-pointers in 11 attempts, including two in overtime -- the first putting the Suns ahead for good, 103-100, with 3:38 left.
Steve Nash had 24 points and 11 assists for the Suns but missed a driving layup with six seconds left in regulation. Shawn Marion matched his career best with six blocked shots, along with 16 points and 11 rebounds.