I just discovered XBMC media centre, and what a pleasant discovery that is! There area heap of streaming video plugins that are available: perhaps the best can be found here:

http://forum.xbmc.org/forumdisplay.php?fid=154&datecut=0&sortby=views&order=desc

The Icefilms plugin is great. I installed XBMC on my Linux Mint 14 OS and on a W7 PC. On the windows pc my Vipre firewall blocked some of the links to streaming video (warned as dangerous sites), but no trouble with Linux Mint, which is immune to most threats anyway.

This is the best way I have of watching streaming video content