Thank goodness for uninterruptable power supply. According to my sister there had just been a sort power-outage at home, lasting roughly half and hour. My investment in an 650 VA model APC is looking like a good idea now. (Also a good idea, having an old Pentium 4 that is idling... by my estimate the power consumption during the outage is probably just under 100 W, so the UPS should've been able to hold up for just around 30 minutes [not factoring in battery aging...].)
So no catastrophic failure, and my 466-day uptime is preserved :)