Adobe Photoshop CS5 or Extended.
 

I have a Mac Pro. EX3. About to upgrade to CS5. I have Final Cut Studio 2 which I have not learned all of it yet. My question is this: Should I get the CS5 Extended, or just the CS5? i.e., does Final Cut Studio address the video part which is in the Extended and I would be wasting my time and money and just get CS5; or is the Extended version something that would be helpful and not covered in Final Cut Studio 2?
Thanks in advance.