I don't know any websites with streaming video, but I followed the 2004 Tour live at these two sites. Both of them had real-time race updates, although they were both a big inconsistent.
Better get used to the handcuffs now. I don't know about Scotland, but over here, re-braodcasting something without getting permission and paying royalties is far from legal. I remember hearing about a web site that was streaming video of the spring classics, but I don't remember what it was. It wasn't free though.
I'm not sure if this is what you were thinking of or not, but check it out anyways. Not sure if they plan on any TdF coverage as I haven't visited the site in a while. http://www.cycling.tv