...aside from being cold as a witch's tit outside, I see a sharp increase in bluescreen and hardware-failure threads. So I offer this advice, coming from my personal and professional experience: GET A HUMIDIFIER. Computers need humidity in the air to drain away static buildup on their components, and also to keep users from building up static and zapping them. If you live in an old house that uses radiators, see if you can get bleeder valves installed on your radiators that will let small amounts of steam escape to keep the air humidified. If you live in a new house with central-air, make sure the valve on the built-in humidifier's water line is open so it can do its job. And if you live in a house built in the 70's or 80's, before central air was advanced enough to include humidity control, buy a humidifier and put it in the same room as your computer. It will pay for itself the first time your computer doesn't break and you don't have to fix it. That is all.