OS-X won't restart after iTunes upgrade

Installed the upgrade of iTunes and QT7 last night and now on re boot my system freezes while in the "loading OSX" screen (reminiscent of Windows blue screen of death >:O), and I have to hold to power button to shutdown the system.
Haven't seen anyone else experiencing this issue yet with the iTunes upgrade.....suggestions?

Grant,
Initially this didn't work (at least not by itself).
Disk repair came back with no errors, with repair permissions reporting several. Upon re-booting, the system froze at the same spot and had to be hard booted to get out of its' locked state.
I had read other threads about people not being able to re-boot after upgrading iTunes, if they had USB peripherals attached. I figured WTH, and disconnected everything but Mouse and Keyboard and did another re-boot and "Whalla!".
I have yet to try it again with all my "stuff" connected to the iMac, so it still is unclear if the disk utilities took care of the problem, or if it was unplugging some of the devices connected. I'll test that this weekend when I have time to trouble shoot the system if it crashes again.
Thanks for your assistance!
B

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Message was edited by: mosk

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OS-X won't restart after iTunes upgrade

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