Just saw the first episode with English dubs on YouTube also. Here's the link:
Death Note ep. 1The voices weren't that bad. But so far I like all of the Japanese voices better than the English ones, except for Ryuk, like you PG.
On YouTube, the last part of ep. 1 didn't include the ending credits and I like the song and the animation, especially from 0:41 to 0:48. So here is the ending credits portion:
Death Note ed. 1I've already seen the whole series in Japanese, but I miss Death Note A LOT right now, so I'm probably going to watch the whole series with English dubs now for fun.
Oh, and like PG said, I guess you can also watch the episode on Adult Swim's website.