Far be it from me to tell you how to spend your money and your time, but you really should check out the Humble Indie Game Bundle. The download pack for PC and Mac contains five award-winning indie games (World of Goo, Aquaria, Lugaru HD, Gish, Penumbra: Overture), and cost whatever you want to pay... and it's for charity. So this is the perfect opportunity to give some indie games a spin and help people.
As far as the price -- this is a shocking rebuke to the principles of Capitalism where the producers of the games are letting the consumers name their own price. But before you're like "Sweet! Five games for a penny!" remember -- the money goes to charity, specifically, anything you give is split between the five games' developers and Child's Play and the Electronic Frontier Foundation. Both groups are doing very good, gamer-centric work in the world, so you really should dig deep, as they say. You can choose how to split the money, too. So if you totally hate Freedom, sick kids and Aquaria, screw the EFF, Child's Play and Aquaria out of their share! That'll show them!
So far, over $200,000 has been donated/spent on the bundle, with the average contribution at $7.87. Seems like a pretty low average at first, but once you figure in all the drainers who pony up a cent, it's actually reasonable.
Anyway, check out the official site for more details.