* Europe bounces but equities globally head for big weekly loss* U.S. non-farm payrolls in focus* Dollar bulls count on a pick-up in hiring* Oil, commodities steady after recent plungeBy Marc JonesLONDON, Oct 3 (Reuters) - Equity and commodity markets steadied ahead of U.S. jobs data on Friday, but were badly bruised after suffering their biggest slump in months on worries about growth, political