My dad just got a new laptop, so he gave me his old one. I've wiped it and installed Windows 7 on it so I can use it as a gaming laptop. It probably won't run anything that came out in the last 5 years or so, but it's fantastic for old school games.
Yesterday, I installed Fallout 1, and Star Trek: Away Team on it and had a good 8-hour marathon between the two of them. Good times.