Games that you would expect to see on a list of low-tech wonders (by today's standards) are here, such as StarCraft and Half-Life: Counter Strike. However, I was more than a little surprised to see resource hogs Heroes of Might and Magic V and Civilization IV included, even at lowered texture and shader settings. Indeed, the review team experienced framerate problems with Heroes V on the PCI Express system.
Still, each game performed admirably on at least one of GameSpot's test configurations, and with entries like Sid Meier's Pirates! and GTA: San Andreas included on the list, there's something for everyone. We'd like to hear which PC games (ancient and current) you've been enjoying on older setups.