New StarCraft Units with Video and Explanation from the GameDevs

GameDevs explaining the New Units in SC2:
StarCraft II - Gameplay Explanation Video - Part 1 of 3
StarCraft II - Gameplay Explanation Video - Part 2 of 3
StarCraft II - Gameplay Explanation Video - Part 3 of 3

Actual Game Footages of StarCraft II
StarCraft II - Gameplay Video - Part 1 of 4 (actual game footage)
StarCraft II - Gameplay Video - Part 4 of 4 (actual game footage)


Sources:


:: StarCraft II Articles ::
StarCraft II - GameDev Explaining the New Units
StarCraft II - Press Release
StarCraft II - Official Details
StarCraft 2 Screenshots
StarCraft 2 Video Trailer
It is Official: Next Big Game of Blizzard - StarCraft 2