MBP will not reboot after 10.6.8 update attempt

This post may be a bit telescopic, since I'm posting from my phone, but here goes:
Attempted 10.6.8 update from 10.6.7 on my late 2009 MBP. It went to a blue screen and then sat on that screen with a progress wheel for over an hour. I gave up at that point and simply restarted by holding down the power button and turning back on. It then went to a gray screen with the Apple logo and a progress wheel for a few seconds and then just shut down. I repeated this several times.
Next, I booted into safe made without any problems. I went to the list of startup programs and chose to hide all of the third party apps, then rebooted into safe mode again.
Here is where I started having issues. It went to the apple logo and progress bar for a few seconds then just shut down. I attempted several safe boots and got the same result over and over.
I then put my install CD in the drive and rebooted holding down C. It went to a blank gray screen for about one minute, then spit out the CD and shut down.
I booted into verbose mode and it did a check and got several errors and then just shut down. I attempted this multiple times with the same result.
I then booted into single user mode and ran fsck -yf. It gave me several missing thread record and invalid extent entry errors followed by numbers and one line that said "Incorrect size for file GSUIcon.icns"
Not knowing what to do with this, I typed tail /var/log/system.log to pull up an error report from around the time this may have started. I'm not sure how to get that text to my phone, but it doesn't say a while lot. Basically that a "terminate was called after throwing an instance of 'Security::CssmError'" then "bpf_write(en1) failed: network is down". There is amlittle more, but none of it tells me what really happened. I can send a picture of the error report from my phone if anyone wants to see the whole thing.
At this point, I cannot boot into safe mode or from a CD, only into verbose or single user mode. Thoughts?
Thanks folks!

MetaKine issues with 10.6.8
MetaKine hands off, update to 1.3.1 before attempting aninstall of 10.6.8: the old version causes a kernel panic and will notallow booting after an update. As it loads a kernel extension,safemode also doesn't work.
Simple solution: boot OSX install DVD, run terminal from utilitiesmenu:
code, enter and press return
cd /Volumes/yournormalbootdisk/System/Library/Extensions
mv HandsOff.kext /
quit Terminal and reboot
Then load Hands off app, and run the update it finds.

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MBP will not reboot after 10.6.8 update attempt

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