Hedo Turkoglu and Shawn Marion were the centerpieces of a four-team trade involving eight players that grew larger as it gained momentum before it was completed Thursday. The Toronto Raptors will add Turkoglu, a key component to the Orlando Magic's drive to the finals. Marion, who split the season between the Raptors and the Miami Heat, is headed to the Dallas Mavericks. The trade was first reported by The Dallas Morning News. The Mavericks will also receive the reserve forwards Kris Humphries and Nathan Jawai from the Raptors and the reserve guard Greg Buckner from the Memphis Grizzlies, while sending swingman Devean George and guard Antoine Wright to Toronto. The Grizzlies will receive a future second-round draft pick from Toronto and the veteran Jerry Stackhouse from the Mavericks, but are expected to waive him with a monetary payment they are receiving in the deal. Meanwhile, instead of allowing Turkoglu to join the Raptors through free agency, the Magic gain a $7 million trade exception that can be used within a year should the Magic make a trade that adds money to its payroll. On the heels of his playoff performance, Turkoglu was considered one of the jewels of this summer's free-agent class. After absorbing Vince Carter's contract in a trade with the Nets, Orlando would have been forced to move well over the luxury tax to retain Turkoglu, who opted out of the final season of his Magic contract. The Portland Trail Blazers made a big push to land Turkoglu, and the sides had reached an oral commitment before Turkoglu wavered, creating an opening for the Raptors. Turkoglu's deal is for about $53 million over five years. As was the case with Orlando's acquisition of Carter, Turkoglu's arrival made it financially imperative for Toronto to move Marion. The deal redefines the Raptors on the heels of a 33-49 season. Among other things, it allows the Raptors to use Turkoglu as a recruiting tool to keep forward Chris Bosh, who can become a free agent after next season. Marion, meanwhile, is expected to sign a contract with the Raptors for about $40 million over five years before he is traded to Dallas. The Mavericks previously re-signed Jason Kidd and also signed the restricted free-agent center Marcin Gortat to a five-year, $34 million offer sheet. The Magic, Gortat's former team, is not expected to match the Mavericks' offer. 'We're ecstatic to add a player of this caliber, experience and athleticism,' Donnie Nelson, the president of basketball operations for the Mavericks, said of Marion in a conference call with reporters. 'We feel that this gives us a really good opportunity to compete with the best of the West.' 