THE FIRST THING THAT HAPPENS IS BROKEN. (10/21 update: I weigh in at length on the issue at gameosaurus.com. Bottom line, please don't hold the glitchy madness against this great, great game.)
(10/20 Update: All of my NPCs and enemies were doing this. Animation broken, hovering across the wasteland. Game also crashed every five minutes. Fixed it all by turning off aniso filtering? Anyway, it doesn't happen anymore, and the game is mostly stable now. Loving it, by the way.)
Legit PC copy purchased 10/19 through Steam.
Specs: i5 / 6 GB corsair / Radeon HD 5850 with newest drivers