Hello, I updated to both itunes 6.0.1 and Mac OS 10.4.3 at the same time. BIG MISTAKE. The entire system frozen with the transparent kernel panic error informing me to physically power down the unit. Upon a very long reboot my system is still 10.4.2 - and almost everything is broken. Safari - DOA, iChat - DOA, Spotlight - DOA, System Update - DOA, Dictionary - DOA, and the list goes on. Just about every apple program turns on and then turns off. I can not apply the standalone updater from apples website (the updater says to try installing again, but will not work) and pretty much dont know where to begin to try to fix this. Any ideas and help would be most appreciated!!!