by , 8:40 AM EST, November 12th, 2007

Apple unveiled three new Get a Mac ads on Monday. The commercials highlight Mac OS X 10.5 while taking jabs at Microsoft's Windows Vista operating system. Like previous commercials, these feature John Hodgman as PC and Justin Long as Mac.

Apple's new Get a Mac ad.

Podium has PC campaigning for Vista while trying to downplay Leopard features, PC is ready to jump in the prize fighter ring to defend Vista from Leopard in Boxer, and PC hires a PR person to put a positive spin on Vista's problems in PR Lady.

PR Lady, Boxer, and Podium are available at the Apple Web site, and require QuickTime to view.