So for the last little while the right fan on my MBP has been running off-center and rattling like crazy...but I figured that other than being annoying, it wasn't hurting anything. I plan on getting it fixed, but I'm hoping to get my thesis done before sending it in for repair (I can't manage without it for a couple of weeks). Unfortunately, the other day while doing some simulations (CPU running at 100% for long periods of time), the fan died a dramatic screeching death. So far the other fan seems to have been able to cope, but who knows for how long. Anyone else had this experience?