This is a "Golden Orb" spider, and sorry to tell you folks but there is "NO" non venomous spider. Granted most are not deadly, but all spiders are in fact venomous. The Golden Orb spider's venom is a neurotoxic venom much like the "Black Widow" but it is not nearly as strong. These spiders while Venomous are not considerd deadly. The venom can make you sick though but its action is usually swelling (Local) redness, and maybe some blisters. The bite can be painful but usually last only a day or two.
An interesting fact is that the Golden Orb and the Black Widow both have what is considered the strongest web. Golden Orbs also are one of the largest spiders.
Roland