I think you might find that it is your graphics card causing the whine
Since I'm going for quietness, my graphics cards is rather pathetic. It's an ATI Xpert 2000 Pro. I guess it's possible it's the card, but I would tend to think that a more high end card would do such a thing since my low end card doesn't consume a lot of power or do a whole lot graphics wise. Conversly, I guess the same logic could be used to say it actually would make the sound. Since the card is so crappy, it really has to work hard to do even simple tasks, such as scroll up and down an Internet page. For the record, it has no fan (right from the factory - it's a "built by ATI card").
Anyway, thanks for the thought. I will have to test this now to see exactly which of the two is making the noise. I bought my Power Supply from quietpc.ca, and they said they would send me a new one. So if the new one also does this swooshing sound, then I can probably be more certain it is the graphics card. Although, since the Nexus is so highly praised, I may be tempted to get one of those just to be absolutely sure.
Either way, I'lll keep you guys posted. Thanks for the idea!!