Ending today, Newegg offers the Corsair Carbide Series 88R MicroATX Mid-Tower Case, model no. CC-9011086-WW, for $39.99. This $10 mail-in rebate cuts it to $29.99. With free shipping, that's the lowest total price we could find by $19. Features include five 120mm fans, one 5.25" external drive bay, three 3.5" external drive bays, two 2.5" internal drive bays, and USB 3.0 and 2.0 connectors.