2K Games DLC marked down for Xbox Live Deal of the Week

If you're of the opinion that the respective, already-pretty-massive worlds of BioShock 2, Borderlands and Mafia 2 could use a little expanding, you can do so on the cheap this week. Xbox Live Marketplace has discounted select DLC for the three titles as its current Deal of the Week.

• Mafia II: Joe's Adventure -- 400 Microsoft Points ($5), down from 800 Microsoft Points ($10)

• Mafia II: Jimmy's Vendetta -- 400 Microsoft Points ($5), down from 800 Microsoft Points ($10)

• Mafia II: Fedora -- 80 Microsoft Points ($1), down from 160 Microsoft Points ($2)

• Bioshock 2: Minerva's Den -- 400 Microsoft Points ($5), down from 800 Microsoft Points ($10)

• Bioshock 2: The Protector Trials -- 200 Microsoft Points ($2.50), down from 400 Microsoft Points ($5)

• Bioshock 2: Bouncer Big Daddy Helmet -- 80 Microsoft Points ($1), down from 160 Microsoft Points ($2)

• Borderlands: Secret Armory -- 400 Microsoft Points ($5), down from 800 Microsoft Points ($10)

• Borderlands: New Revolution -- 400 Microsoft Points ($5), down from 800 Microsoft Points ($10)

• Borderlands: Bandit Mask -- 80 Microsoft Points ($1), down from 160 Microsoft Points ($2)