James Giddens, the trustee for the failed MF Global Inc., announced two key agreements that are expected to accelerate cash payouts to clients and creditors of the failed futures brokerage, Reuters reported on Saturday. Giddens said that he has negotiated deals to resolve disputes with the company's former British affiliate and the parent company, MF Global Holdings Ltd. As a result of the UK agreement, Giddens estimated between $500 million and $600 million could be returned to the MF Global estate if the deal is finalized.