Interesting at first, lots to learn. New jargon. Regardless what department you join you need to keep to time, and work quickly.
You need a driving licence to work in baggage. Shift patterns will probably be a shock to the body, very early starts and very late finishes.
Check these companies for work-
Australian Air Express - AAE
Aviation Ground Handling Pty Ltd
Hawker Pacific Flight centre
Menzies Aviation
Oceania Aviation Services Pty Ltd
Platinum Business Aviation Centre
Skystar Airport Services Pty Ltd
Toll Dnata Airport Services
Universal Aviation