What you have there Mike, is Latrodectus Mactans, the black widow, females have that characteristic red hour-glass marking, whereas the males are more brownish, the males are small, and their venom is piss-poor, the female on the other hand, is another case entirely, quite a shy spider, not like funnelwebs or he brazillian wandering spider, but they will bite if you do something to piss them off too much, and have a fairly potent neurotoxic bite.