Mac Book Pro Won't Open My External Drive

I have a 200gb external drive. When I plug it into my fire wire 400, the macbook recognizes the drive, but when I try to open it, I get ye olde spinning color wheel that goes on until I turn off the drive. Any ideas?

First, I will inform you that your nik is inappropriate. Please change it immediately. We're not prudes here on the Apple Discussions, but we do try to maintain a bit of decorum.
Nevertheless, I will try to help you. There are several possible explanations for the behavior you are seeing. The most likely is that the volume on your external drive has suffered a disk error. Connect the drive and turn it on, then open Disk Utility, select the drive's volume on the left in the "First Aid" pane, and click on "Repair Disk." Let us know what, if any, errors it reports, and if it is able to successfully repair the volume.
One of a several things might happen when you attempt to repair the volume. The best scenario for you is if it actually finds erors and is able to repair them; problem solved. It could find errors and not be able to repair them, in wich case you will need to either format the volume or use Disk Warrior to attempt further repairs. Even if Disk Warrior works, I would recommend backing up what you can after successful repairs, then reformatting the volume.
Disk Utility might "freeze" when attempting to either unmount or repair the drive. In this case, circumstances point to a problem not with the volume, but with communication between your computer and the volume. This could be caused by incompatible firmware on the drive, or bad hardware in the drive. If it is a firmware issue, it can be resolved by downloading and installing updated firmware (if it exists) for the drive. Check the drive manufacturer's website.
"Bad drive hardware" could be a bad enclosure "bridge" (Firewire to ATA), a bad ATA cable in the enclosure (I've experienced this problem myself in the past), or a bad drive inside the enclosure. Of these three problems, a bad cable would be the easiest to fix. Obviously, fixing it would involve opening the enclosure, but once opened it is a simple matter to replace the existing cable with a new one.
Follow what instructions I have given, then use the additional info I have given to help you troubleshoot this problem. Good luck, and change that name(!!).
Scott

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Here was the original post
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Please read this whole message before doing anything.
This procedure is a diagnostic test. It’s unlikely to solve your problem. Don’t be disappointed when you find that nothing has changed after you complete it.
The purpose of the test is to determine whether the problem is caused by third-party software that loads automatically at startup or login, by a peripheral device, by a font conflict, or by corruption of the file system or of certain system caches.
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Date: Tue, 4 May 2010 16:34:51 -0600
From: [email protected]
To: [email protected]
Subject: PSE 6 on Mac Book Pro Crashes when opening a picture
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>

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