Time Machine - Preparing backup - It's endless

My C2D Mac Mini is hanging on Time Machine - Preparing Backup for the second time since "Upgrading" to 10.5.2
I had to re-format my backup disk last time and start all the backups again.
Here is an extract from the console log:
29/04/2008 23:50:13 /System/Library/CoreServices/backupd[1094] Starting standard backup
29/04/2008 23:50:13 /System/Library/CoreServices/backupd[1094] Backing up to: /Volumes/LaCie Disk/Backups.backupdb
29/04/2008 23:50:15 /System/Library/CoreServices/backupd[1094] Event store UUIDs don't match for volume: Macintosh HD
29/04/2008 23:50:15 /System/Library/CoreServices/backupd[1094] Node requires deep traversal:/ reason:kFSEDBEventFlagMustScanSubDirs|kFSEDBEventFlagReasonEventDBUntrustable|
Does anyone recognise this? I'm a Mac novice so I don't understand what it all means. I hope I don't have to reformat and start again as I was converted to Mac from PC on the advice that "A Mac Works!"
My backup drive is a 500GB Lacie Mini if that is of any relevance. Spotlight is told not to index the drive and also the Lacie drive is told not to back itself up.
Can anyone help as it's driving me nuts!

Are Lacie really that bad? I thought that the main reason they are mentioned in these forums is that Lacie are one of the only brands of external storage that apple actively promote through their own web stores so there a good chance that quite a few Mac users will buy one. Anyway I can't afford to buy another Hard Drive at the moment and the lacie works perfectly apart from Time Machine.
The problem seems to be with Mac OS the more I delve into these forums and more importantly the 10.5.2. update which is where Time Machine appears to be providing users with a lot of troubles.
The Apple support self service on the website is far from comprehensive as I guess they want you to purchase Apple Care for ongoing support after the 90 days initial period but come on apple give us a break and sort it out or provide a support email address for specific problems!

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    at a bit of a loss here...
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    Given that time machine doesn't give mountable/cloneable backup, I'm probably going to go back to Carbon Copy Cloner. Still, I like the ease/regularity of Time Machine, and would use it if it works.
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  • Time Machine prepares backups forever

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  • Time Machine "Preparing Backup"

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  • Time Machine prepares backup but cancels without error message before starting backup

    Hello.
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    I decided, based on various clues from Pondini's page, that the hard drive in my Time Capsule was failing.  I started a full backup on my second Time Capsule and am currenly only using the original as an internet router.

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