Thanks for the help. I know that getting an Alienware system is always controversial, but I'm long past the days of building my own machines. I didn't really want to get the Acoustic Dampening, but I've seen other systems with it, and it really is very quiet. On the flip side, I've also seen the Alienware systems without it (albeit without liquid cooling either), and they were absurdly loud. A quiet system is very important to me as I live in an open area, and I don't live alone, so any noise is very noticeable. However, with that said, I plan on overclocking the system, and it would certainly suck if the foam padding somehow affected that. But I guess I won't know until I actually try to OC it. Thanks again for your replies, and I'll probably post again when I get my temperature readings, etc.
Also, do you think this topic would be more appropriate in the "Cases & Cooling" forum? If so, I can repost there, or maybe an administrator can move the thread for me...