Regarding video in Dock.....
YES it does!
If you make you Dock icons large enough you can watch more than one video at the same time???(why one would want to, i dont know

)
SticMAN
Let me add my 2cents......
The powerdown issue(according to me) is a peripheral issue, and i have made several experiments!
If you studied your installation sequence, you would have found that the moment you added AppleHDA.kext via ALCinjext.kext was the first time your machine didn't shut down anymore?
Then when you added a wireless NIC, 'cause your Intel 82566DC wasn't working you would not have noticed a difference,
THEN added to that some of you added a Bluetooth USB dongle??
SO
this is what i did.....I installed AplleHDA.kext via the gFX string(no ALCinject.kext) in com.apple.Boot.plist, this is dumped when you shutdown
I disabled and removed my Wireless USB before shutting down AND closed the NIC's GUI interface
I unplugged my Bluetooth USB Dongle and VIOLA! everything shut off!!
My theory:
As the same idea as the the startup sequence there is a shutdown sequence, the system shuts down one peripheral at a time.
if it "checks to see if the thing is active, it will not close it down for fear of losing data or something! Hence the active Audio and Network!
If you watch the system during shutdown and you "rip" your USB NIC wireless out(with the light still on) you will probably get your system shuts down.
So what I did....
First, disable your onboard NIC(intel 82566DC) if you care to watch it, you will see that because of the intel8254x driver being loaded through IONetworkingfamily.kext it keeps on "trying" to initialize! IHAVE REMOVED THE SAID KEXT FILE FROM THERE!
Secondly, Use Boot.plist strings where ever you can
Thirdly, and this is the greyest issue (personally i dont think it matters) make sure you don't have your phone or other bluetooth devices connected. I DONT THINK WIRELESS KEYBOARDS AND MOUSES COUNT!
My system shutsdown EVERYTIME, sleeps BUT takes so long to startup the screen, 1-2min that it is faster to shut it down and start it up 35-45sec!
Hope this will get people to think about how their systems work and maybe prove me RIGHT or WRONG
SticMAN
"....master you wrote me, i merely echo your errors...."