I have some weird noises coming from my macbook pro.  Here is an mp3 of the sounds recorded in garage band with the internal mic.  To get this noise, I just sit with the MBP in my lap and slowly lift the back left corner up to my right ear while the front right corner stays in my lap. Take a listen here– mbpnoise2.

UPDATE:  I was able to return the old MBP for a new one at the Apple Store.  The new MBP does not have the noise, and my time machine backup restored to the new machine perfectly.  I have to say that I’m very pleased with the service and support with Apple.  I’m totally sold on Apple now!