Amazon has the Thermaltake Core P3 ATX Open Frame Tempered Glass Computer Case (White Snow Edition, CA-1G4-00M6WN-05) on sale for $100 with free shipping.

• Max CPU Cooler Height: 180mm / Max PSU Length: 200mm
• Max VGA Length: 280mm (With Reservoir & Radiator) / 450mm (Without Reservoir & Radiator)
• 3-Way placement: Wall-mount, vertical, or horizontal