The sisters deafeated Daniela Hantuchova of Slovakia and Japan´s Ai Sugiyama 6-3 6-3 to win the trophy for the third time at Melbourne Park. [break]
"I´d like to thank Serena for being the best partner," said 28-year-old Venus. "I wouldn´t want to play with anyone else. She´s amazing."
Serena, 27, is to play the singles final against Russia´s Dinara Safina on Rod Laver Arena on Saturday.
The world number one ranking is also up for grabs.
On another roasting day in Melbourne, the Rod Laver Arena roof was closed for Friday´s doubles final.
The Williams sisters, seeded 10th, breezed through the first set in 38 minutes.
The second set was more hard-fought as the pairs exchanged breaks six times in nine games before the Williams came through.
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