CompUSA.com and CompUSA B&M has Warcraft III: Frozen Throne Expansion Pack for the PC for $19.99 this week. It's originally priced at $34.99 with a $15 instant rebate. This deal will be valid through 8/16.

Thanks Bruin for the deal info!

PC: Warcraft III: Frozen Throne Expansion Pack - $19.99

Got|Apex? Link