It's a little over 30 megs, but it's definitely something any Diablo fan will want to download, especially with all those snazzy exclusive screenshots such as these two beauties:
I hope all Dungeon exits are as lush and ornate as this one.
A Barbarian doing some damage with his Hammer of the Ancients ability.
It's also noteworthy to mention that, at the very start of the article, it lists the ETA for Diablo 3 to be in Spring 2010. Whether that's PCGZine's own estimation or Blizzards has yet to be confirmed however.