Right - I've got a long flight coming up and I want a game to play on my laptop. Thing is, my laptop isn't really cut out for gaming - it's got 2 gig of ram and a decent enough processor but the graphics card isn't up to much and it's running vista so that uses up resources.

What I'm after is a decent game that wont hammer my machine - maybe even a game a few years old that had lower requirements.

BTW, I really know nothing about games - I think the last game I played properly was the first Tomb Raider...