This week's Science carries a short news piece by Eliot Marshall on "Project Jim", the effort to sequence James Watson's genome by 454 Life Sciences. Eliot writes that:
When the project began, 454's equipment wasn't up to the task...But improved technology made it possible to sequence 10 billion bases in multiple overlapping fragments of Watson's DNA "in a space of a few weeks."...The project cost is "about $1 million."
That puts it a bit ahead of my original estimates of exponential pace decreases described, for example, here. I dropped by Bob Waterston's office a few weeks ago, and he put a rough estimate on a human genome at a few million dollars, which more or less corroborates 454's number.