I watched a couple YouTube videos playing through the Starcraft 2 and Warcraft 3 campaigns this weekend, and:
1) The bells tolling in Warcraft's Human campaign ending cinematic still send chills down my spine.
2) My god Blizzards storytelling in those games is amazing.
3) The battle.net installer works through Steam on Linux, and I'm currently downloading Starcraft 2
I'm seeing a playthrough of all 3 SC2 campaigns in my immediate future. 馃槂