Official site
http://www.starcraft2.com/

Announcement teaser
http://www.youtube.com/watch?v=aUXoekeDIW8
(this is also on the official site, but you can pause this)

In game footage
http://tvpot.daum.net/theme/ThemeView.do?themeid=122&lu=m_mono_1

I heard. I am excited. I will need to purchase a new computer if I plan to play it.

"Hell, its about time"

oh wow... a definite must have!