USb and ME

I have a 42" LCD television which has a USB input to it. It has a pretty decent USB media player, so I can just plug in a USB device and watch images, movies and listen to music too from the same. I think its pretty neat and cool to have this feature in my LCD, much better than a clunky DVD player any day. But my current 80GB external USB hard drive is rapidly running out of space and I have to upgrade it.

But the problem is with the current state-of-the-art, 200 GB plus external drives require an external AC power source too. So its still plug and play, but with an additional plug in for the power source. I have narrowed down on a MAXTOR 500 GB external drive for about 120 odd US dollars (4740 INR). I think it is a pretty decent deal. Anyone got better suggestions? Are external power source less drives coming up on the horizon? Let know!