Don't focus on the EEPROM message, this can be harmless ( its from your ethernet device ) . The real Error is : somethings wrong with your SCSI ( AHCI ? ) Mass-Storage kexts, especially with your CD/DVDROM kexts..
"still waiting for root device" might be related to that. ( As long as OSX can not talk to all mass-storage devices, it blocks the hard disk from completing the boot ) .
some kext ( can't identify from the shot ) says it is "outdated". Are you sure you have only Snow Kexts ? Typically such a error means you have mixed Leo and Snow Leo drivers..
The installation is definitely damaged and needs manual repair.
Yesterday, I installed Mac OS X 10.6.3. When I boot it, it stopped at 'RTL8139::registerEEPROM - Flow Control is disabled'. I knew that the problem is Mac OS X 10.6 doesn't support Intel ICH6. Therefore, I installed ATAPortInjector.pkg from Hazard 10.6.6i DVD and it worked.
But now I install it and it didn't work.