Fan sites and media have been swarming the SWTOR booth here are a select few from the E3 floor.
SWTOR-Life from the E3 floor.
TORWars Also on the E3 floor.
SWTOR-Life again this time with Daniel Erickson.
GameSpot also with Daniel Erickson.
And again TORWars are on top of things with not 1 but 2 game-play videos already uploaded.
Sith Marauder Gameplay
Imperial Agent Gameplay
I'm sure there is more out there and also sure we will see a lot more to come. I'll keep an eye out and post when they become available.