I have a Dune HD Smart D1 which is a brilliant media player / streamer / local HDD player. it can play pretty much anything you wish to throw at it. 1080p, DTS HD Master Audio and Dolby TrueHD audio
http://dune-hd.com/hd_players/curren...-smart-d1.html
costs around £200, but really worth it. you'll need to buy a HDD seperately. the wireless dongle is only about £20 on amazon, though it does have 10/100 built in;
http://www.amazon.co.uk/Dune-HD-DUNE...6426246&sr=8-2
http://www.amazon.co.uk/Dune-HD-Air-...6426274&sr=1-1
nice free Video wall for it is Zappiti.