Newegg offers the Raidmax Strato ATX Mid-Tower Computer Case in Black, model no. ATX-109B, for $29.99. Redeem this $20 mail-in rebate to cut it to $9.99. With free shipping, that's $30 off list and the lowest total price we could find. It includes two external 5.25" drive bays, two internal 3.5" drive bays, three internal 2.5" drive bays, and a 120mm fan. Rebate expires October 24.