Mass Effect 3 PAX screens

The pics show Sheperd engaging robots and mechs in combat scenarios, standing around chatting to returning crew members in-between the action, and big Mass Effect 3 logos.

Mass Effect 3 SDCC Demo

Bioware's Casey Hudson gives a look at the upcoming Mass Effect 3. Straight from the floors of SDCC 2011

New Mass Effect 3 screen shows Ashley in S1 uniform

A new Mass Effect screenshot, originating on Portuguese forum Zwame, shows four of Mass Effect 3's cast in their alternate uniforms.

In it we can see Ashley wearing her new S1 uniform, and Liara wearing an outfit similar to Samara's.
The third character, James Vega, is a human Systems Alliance soldier new to Mass Effect 3.

Mass Effect 3 will be released on March 9, 2012 for Xbox 360, PS3, and PC.