If you're done shooting the breeze with these inhuman invaders, try shooting the bejesus out of them with the Firepower Pack, a new downloadable add-on for Mass Effect 2 (available now on Xbox 360 and PC). A donation of 160 MS / BioWare Points ($2) will grant access to the Phalanx, a heavy pistol with a laser sight, and the Mattock heavy rifle, a "semi-auto beast" usable by those proficient in assault rifles. You'll also get the Geth Plasma Shotgun that hits enemies with a charged shot and at greater distance than regular shotguns.
Remember: Guns don't kill people, they kill aliens.
[This message brought to you by the Cerberus group. Firepower Pack not brought to you by the Cerberus Network.]