External Drive Problems

I finally got a great deal on a Mac Pro since my dealer senses something new coming our way. So this means moving everything from the MDD to the new machine.
Six months ago I started planning for a move such as this by installing a SATA card and drive into the MDD thinking that all I'd have to do, when I finally purchased a MP, is pop it into the new machine and continue working. Part of this has worked out and part not.
The drive (Seagate 320gb, 7200, 16mb cache running Leo 10.5.1) went in with only a few bugs. Had to wipe the factory drive, so that there wouldn't be a startup conflict, then I used that one as a Time Machine drive. The only oddity is that PS (CS3) says that it's locked (?). I unlocked it in Get Info and that doesn't seem to take, it's still brings up up the same message about being locked. Anyone had this happen? I can probably get around this by a fresh install, but I thought I'd ask about it since I'm posting.
The main thing that's bugging me is the fact that I cannot connect any external enclosures to this machine whether it's FW or USB. The drive that I'm attempting to connect is an ATA (Seagate 160gb) drive that was in the MDD running Tiger. I need access to this for all the old jobs on it, which take up about 120gb. I've tried both USB and FW enclosures, setting the drive to Master and Cable Select, connecting via both crossover cable and regular ethernet cable from one machine to another and also tried Target Disk Mode (start up with T key) with the drive back in the MDD. All were unresponsive. I updated the MP's system to the latest (10.5.1) and zapped the PMU, this didn't help either. What does it take to get this drive to mount on the MP? I know that the MP is a new machine to me, but come on; I can't recall any machine or version of OS X giving me such a problem.
Edit in: I can't recall if the enclosures have Oxford chipsets, but I highly doubt they do. These were read fine with all my machines (G4's and a G5), is the MP more picky about this requirement?
Thanks for any light you may shed,
Tony

Hi Dan,
Lets see if I can answer your questions without confusing you (and myself) more.
"To help us understand what you did, the Seagate that was in the MDD set to the sata card was used as your boot drive in the MDD?"
Kinda. Although I loaded Tiger then Leo, along with most of my wares, I never completely switched over from the other internal drive (ATA) that was running Tiger. I did boot it now and then to run updates and what-not.
"you could have partitioned the Seagate and put each on a separate partition to be able to use to boot both the MDD & MP. Did you set it up this way, because a apm will not boot a guid system."
Unfortunately I did not set it up this way, yet the system boots fine. It is a bit buggy as far a PS not launching completely.
BTW, "APM"? Apple Power Mac?
"Anyway explaining how you set the Seagate up will help."
As far as set up the only other thing I can recall is Journaled HFS+ I believe (I'm not at home right now to know for sure).
"Also what SATA card was used?"
Sonnet Tempo Serial ATA
"The Seagate 160gb is still bootable when its in the MDD?"
Yes, it's running today.
"And if there is 120gb of jobs on a 160gb hd then I can see there might be a slight problem getting to the information."
I just called my wife and she said that it says 140gb used and 8gb available. Why a slight problem getting to the info? Is that an oxymoron?
What I might have to do is purchase another SATA (320gb) drive and put all the jobs on that for now while the 160 is firewired to the MDD. Then pop that drive into the MP and use it for Jobs only.
Also, in the MP, wipe the main drive (that was in the MDD) and do a fresh install of the OS unless a "Clean Install" does the trick, which of course will save me time installing my programs. Opinion? Don't want to have to go this route, but also don't want more problems later. I've been in this game long enough to know better.
Tony
Edit in.

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@ Gregory
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Chead wrote:
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(26438)

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