I love Mass Effect, and I'm not the only one! There are folks on this very board who have cosplayed from it, mostly as Tali.
I myself plan to do Thane from Mass Effect 2 next year, and my friend is going to do Commander Shepard. We are going to do plastic armor and custom weapons, and I shall be doing a full latex mask. It'll be our most ambitious project (cosplay or otherwise) to date!
I'm a U.S. Navy Sailor. I also make costumes sometimes. Probably more often, now that Uncle Sam pays me well.
I cosplayed Thane Krios and have a fondness for projects that are way over my head.