Hey everyone, i just wanted to see if anyone else's mbp's have gotten louder over time. To be more specific, I've downloaded a couple of applications, added movies, music, saved some desktop wallpapers from the net, etc. I've used about 48 GB of my 500GB 7200rpm HDD. I recently (just noticed today) realized that beyond the faint sound of the fan during casual use (web surfing, opening files through the finder menu, loading up movies) that i now hear a slight crackling noise of the HD when it loads up the files or whatever i plan on opening. It reminds me of the Dell PC I was on before coming to the mac side. But the Dell's crackling noise when loading files up was way more amplified then the crackling noise i hear faintly on my mbp. To keep it simple in comparison, the faint crackling noise i hear in my mbp is very mellow, but the dell's sounds like a thunder storm rumbling when loading files. Just worried that the slight crackling noise i hear in my mbp is the beginning of what will eventually come about over time (the end result = dell's rumbling noise). Is this normal? and it's what ends up happening as more HDD space is being used? ps. My 15" mbp i7 is about 2 weeks old. thanks!