Amazon offers the NZXT GAMMA Classic Mid-Tower ATX Computer Case
in Black, model no. GAMA-001BK, for $28.79
with free shipping
. That's the lowest total price we could find by $3. It features four external 5.25" drive bays, seven internal 3.5" drive bays, seven expansion slots, 6-fan capacity (one 120mm fan is included), and front USB, audio, and eSATA ports.