For those of you who don't know, the Humble Bundle is a set of games that you pay any price you want. It has usually been Android games with Steam keys also available.
The latest Humble Bundle is just Steam PC games from THQ: Saints Row the Third, Darksiders, Metro 2033, Red Faction Armageddon, Company of Heroes Trilogy (the Original plus Opposing Fronts and Tales of Valor).
Here is the link:
http://www.humblebundle.com/You can pay as little as $1 for all the games, but to get Saints Row you need to pay at least $5.
Also, a portion of the money goes to Charity - you can control the amount of money that goes to charity/Humble Bundle/THQ via sliders.