>>>This sounds very cool. My only catch is that you have to have a powerful PC connected to cable at home. But all in all this is a great concept.
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>>Yeah that is the bummer side of it....but heck 2.4ghz and 512mb isnt all that expenisve anymore either.
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>Another concern I have is the following. Say I buy the computer and connect it to my cable at home. Is the cable signal being sent to the internet all the time? That is, does it send the signal even if I don't watch it at work?

No it's not being sent all the time.

The ORB program that runs on your home computer acts as the 'server'. When you log into the ORB 'server', a nice webpage comes up, lets you pick which TV channel you want to watch, or which of the vidoes/music you have stored on the machine you want to watch. At that time, when you select which TV show to watch, THEN the streaming begins. When you quit watching it, the stream stops.