I tell ya, the Zune team is just too good to us.  Not only did ALL hardware versions get the amazing 3.0 update today for free (suck it, iJerks!), but they let loose a whole big bunch of half-priced and free music, free videos, AND a trial audiobook from Audible.  This is even better than all the free music I found at Amazon not long ago.  Here's a rundown of everything that's available now (and you'd better get it now, who knows how long it will be around for free).

Click the button to be magically whisked away to the Zune Marketplace

Music:

"Dem Boyz Go" by Planet Asia & F.L.O.

"Fallin'" by Alicia Keys

"Beautiful" by Christina Aguilera

"Vanorapa" by Chiwoniso

"Heroes of Our Time" by Dragonforce

"Yesterday" by Leona Lewis

"So Fresh, So Clean" by OutKast

"Me Cai (Da Cruz Jazz Ragga Mix)" by Pacifika

"Pervert Pop Song" by Plastilina Mosh

"Hips Don't Lie" by Shakira

"Jazz (We've Got)" by A Tribe Called Quest

For the half-priced full albums, go to the main Music Page in the Marketplace and click on the "Back to School Sale"

Video (go to the most recent season to find free download):

30 Rock 

The Office

Battlestar Galactica

Psych

Monk

In Plain Sight

Heros

Eureka

Top Design

Audible Trial:

audtrial

(thanks to Paul Davidson at Zune Insider, Jason Dunn and Darius Wey at Zune Thoughts for the info!)