Pushing air cooling to its limits might mean buying a bigger fan to the mortal PC builder, but for Mike at Total Geekdom, it meant constructing a wind tunnel case.

ENGADGET: Wind tunnel PC case pushes the air cooling envelope, does its thing for cancer research

The Hailstorm II pairs an advanced liquid cooling system with a blustery current of cold air driven by three front intake fans and a large rear exhaust fan.

ENGADGET: Digital Storm's Hailstorm II relieves you of gaming PC claustrophobia, $2,760 cash