In the mean time, all these companies are selling various boxes that allow you to stream movies from your PC to watch on your TV. I've had the D-link dsm-520 for a while until recently I switched to a full fledged dedicated home-theater pc (HTPC) that is connected directly to my tv. You can buy HTPCs but right now they are a lot of headache to set up correctly (especially with linux) and Vista has it's own pains. I'm sure Apple will continue to expand its AppleTV line of products (check it out if you haven't!).
That sounds cool! I'll wait for now, but it's something to keep in mind for later.