Continual iTunes lock ups

Hi there,
Getting some odd behaviour over the past couple of weeks with 10.2 and now 10.2.1. To the best of my ability I am reckoning that it is being caused by a clash with iPhoto, let me explain further.
I got a new iMac before Xmas and upgraded to iPhoto 11. This wrecked my library which was a mix of managed and referenced so I bit the bullet and have been slowly re-importing all the referenced pics and files. This has been turgid, doing anything in iPhoto around this has been horribly, horribly slow despite a fast processor and 8gb of RAM.
Anyway, it has been progressing but over the past few weeks whenever I am doing something in iPhoto, switch to iTunes to play a track or rate one for example and it's a beachball of death before I even try and click within iTunes. I need to Force Quit it. This happens 6 or 7 times in an evening, always the same behaviour. If I was in Safari and used Spaces to cycle through my open spaces, even if I were to go via iPhoto meaning it is selected momentarily then that is enough to cause this problem.
The thing is I have been doing this rebuilding iPhoto task since Xmas and iTunes was unaffected until just these past few weeks.
Any ideas? I can post crash reports if it helps.
Thanks,
Craig

I've had this happen on my laptop countless times.
It's done it on every version except like the old version 4.7.
It's annoying as heck and I've even reloaded my laptop entirely to try to fix this problem.
It seems to happen at random times and I don't have any spyware or malware or viruses on my PC's. I've even tested it on a freshly loaded test desktop I have at work (I'm a network/server guy). Still did the same thing throughout the day. It's messed up.
Nothing has helped. I have all the most up to date drivers and chipset software from Dell.
It also happens on my other computer which is a desktop and it's has no hardware that is the same. My other computer also has different antivirus installed and has almost nothing in common with my laptop.
I really wish someone from Apple would realize this is a problem. It has happened on 3 different PC's that I've had iTunes installed on.
Message was edited by: ServerMechanic to add a paragraph.

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    com.apple.driver.DspFuncLib          2.3.7fc4
    com.apple.iokit.IOAudioFamily          1.8.9fc11
    com.apple.kext.OSvKernDSPLib          1.6
    com.apple.nvidia.gk100hal          8.1.0
    com.apple.NVDAResman          8.1.0
    com.apple.iokit.IOFireWireIP          2.2.5
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    com.apple.iokit.AppleBluetoothHCIControllerUSBTransport          4.1.3f3
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    com.apple.driver.AppleThunderboltEDMSource          1.1.8
    com.apple.driver.AppleThunderboltDPOutAdapter          1.8.9
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    4. Starting with OS X 10.8.3, a third layer of protection has been added: a "Malware Removal Tool" (MRT). MRT runs automatically in the background when you update the OS. It checks for, and removes, malware that may have evaded the other protections via a Java exploit (see below.) MRT also runs when you install or update the Apple-supplied Java runtime (but not the Oracle runtime.) Like XProtect, MRT is presumably effective against known attacks, but maybe not against unknown attacks. It notifies you if it finds malware, but otherwise there's no user interface to MRT.
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