Newegg offers the Corsair Obsidian Series 550D ATX Mid Tower Case in Black for $119.99. A $20 mail-in rebate cuts the price to $99.99. With free shipping, that's the lowest total price we could find by $26. It features 10 fan mounts (two 120mm front-panel intake fans and one 120mm rear exhaust fan are included) and sound dampening construction. Rebate expires today.