I have the opportunity to get upto 20Mb download speeds using a small local ISP company which uses Fibre to The Mast (FTTM) technology. Speed options I can choose from are 5, 10 or 20 Mbps. What do people recommend is the minimum requirement for streaming HD movies with 5.1 Sound. There are no other users in the house except my wife who only uses broadband for general surfing and e-mails. Any comments greatly appreciated.