Disk Utility -- order of internal hard drives in drive list?

I just upgraded my Mac Pro with two additional hard drives, installed in Bay 2 and Bay 3. Both drives are the same, Western Digital 250GB model WD2500KS. The stock drive is a 250GB Seagate.
My question is in regards to the order in which the drives appear in the list of drives (left-column) of Disk Utility. In other Macs I've owned, the drive installed into the first, or "main" internal drive bay would show up at the top of the list, with subsequent drives ordered below.
On my Mac Pro, with the drives installed as described above, the WD drive installed in Bay 2 shows up first in the list (at the top), then the Seagate (Bay 1) second, then the WD drive in Bay 3 third.
Now admittedly, this is not really an issue, as the drives work fine and I can manage them in Disk Utility without problems. I'm just curious as to why they are lining up out of the usual "order"? Is there a way to rearrange them in the list? I'd actually prefer to have my startup drive (Bay 1) listed first, with the other two BELOW that drive. Is there a preference file I can alter, or some other way of manually ordering them?
I tried zapping PRAM, which did not help. I also tried uninstalling the drive in Bay 2 and then reinstalling it. This actually worked temporarily. When I rebooted, the Bay 2 (WD) drive showed up in the list below the Bay 1 drive (Seagate) as desired. But upon another restart, it showed up at the top of the list again! Strange behavior.
Any thoughts?
I am running Tiger 10.4.10 on a Mac Pro 2.66 GHz Quad.
Best,
Alan

Rick,
I've tried playing around with renaming drives (and partitions), and changing the Finder's view options with respect to the order in which drives are listed (either by name or otherwise), but it doesn't have any effect on the ordering of drives in Disk Utility. Seems like it's a separate deal. I think it does have something to do with which physical drive is seen first by the computer as it boots up (pretty much what was said in the first response), and the order in which disk ID's are assigned. Again, the strange thing is that sometimes it does list the Seagate (Bay 1) first, followed by Bay 2 and 3. But usually not. Most of the time, it lists the drive in Bay 2 (and its respective partitions) first, and then Bay 1 with its partitions, then Bay 3. Odd.
If you have any other ideas I'm all ears!
Best,
Alan

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Disk Utility -- order of internal hard drives in drive list?

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