Heat swap Shawn Marion for Jermaine O'Neal

MIAMI — Shawn Marion's most memorable play with the Miami Heat was his last.

Hours after Marion's last-second dunk lifted the Heat past the Chicago Bulls, he was traded Friday to the Toronto Raptors in exchange for Jermaine O'Neal, ending a weeks-long saga involving the expected deal.

NBA officials approved the swap Friday afternoon by conference call, the Heat said.

Toronto also gets guard Marcus Banks and cash considerations, while Miami will receive forward Jamario Moon and a future first-round draft pick, to come sometime between 2010 and 2015. It's lottery-protected, essentially meaning the first time the Raptors make the playoffs after this season, their first-rounder goes to Miami.

If Miami does not get that first-round pick in 2010, it will get an additional second-round pick that year.

Miami and Toronto discussed the deal for weeks and, with the trade deadline looming Wednesday, decided to move forward. Miami also was linked to trade talk with several other teams, including Phoenix and Sacramento, and perhaps was able to coax the draft pick out of Toronto by waiting so long to make the deal.

All players involved will likely have to pass physicals, which can be waived by agreement.

Marion — whom Miami acquired just over a year ago from Phoenix for Shaquille O'Neal — was referred to by both Heat coach Erik Spoelstra and president Pat Riley in recent weeks as the team's "second-best player" behind Dwyane Wade.

He took a bounce pass from Wade and dunked with 1.1 seconds left Thursday night, lifting Miami to a 95-93 win and sparking the sort of on-court, chest-bumping celebration that's rarely seen in the regular season.

It was his last hurrah, though, with Miami.

Marion was a key part of Miami's 28-24 start to this season, averaging 12 points (third on the team behind Wade and Michael Beasley, who now could replace him in the starting lineup at small forward) and a team-best 8.7 rebounds.

But he wanted a long-term contract, something Miami was not willing to provide.

One of Miami's primary areas of concentration, just like every other team in the NBA, is keeping cap space clear for the summer of 2010, when the likes of Wade, LeBron James, Kobe Bryant, Amare Stoudemire and Chris Bosh can become free agents.

And this trade clears another $4.8 million in cap room for that summer; that's what Banks, who had fallen out of the rotation in Miami, would have been owed in the 2010-11 season.