PopCap know how to make great casual games. Their lineup may first appear to be friendly, cutesy throwaway experiences... but they soon consume your free time with hidden depth and undeniable charm. Anyone who's ever played Peggle or Plants vs Zombies will know what I'm talking about.
To celebrate the holiday season, PopCap have announced that they've slashed 50% from every single one of their downloadable games. This promotion ends on November 29th, so it might well be time to treat yourself to an early Christmas present!