If you are doing some post X-mas shopping for yourself, the first 6 seasons of Entourage are on sale at Amazon for $10 per set.
Season 7 (which finished on HBO earlier this year) will be out in 2011. I assume after the last season 8 (late 2011) will lead to a complete box set.
• Entourage: The Complete First Season (2004)
• Entourage: The Complete Fifth Season (2009)
• Entourage: The Complete Sixth Season (2010)
UPDATE: December 29th 2010, 3:45pm
I was in Target picking up a few items — they have the full run of Entourage seasons for $10 each as well . . .