If you read the last Remembering the Fallen article and thought you might enjoy Age of Empires III, you have no better chance to grab it then now. It’s only $20 bucks for the complete edition, 50 percent of retail price. Other top strategy games, such as Warhammer 40K and Dawn of War, are on sale as well so you might want to check it out.
Be forewarned however, these deals are only available through Games for Windows Live. If you can get past having another Steam-like game client on your PC though, these titles are definitely worth checking out. Plus, all Gamerscore earned on GFWL will help you achievement junkies boost your Xbox Gamertag as well (talking to all those achievement hunters out there).
If you are interested, here is the link to the site detailing the offers.