The PAK-FA recently underwent it's first taxi and test flights. I've seen a lot of drawings (with lots of speculation) out there of the aircraft but have yet to see an actual picture.
Has anyone seen one?

Yes, that is PAK-FA :-))))) http://www.airfighters.com/photo/39560/L/Slovakia-Air-Force/Mikoyan-Gurevich-MiG-29A-9-12A/2022/

The Russians would put a star or a tri-colour on the vstab. Even during the Soviet regime, they never flew an aircraft without national markings, or tactical codes. Three-digit tactical codes are common on development and testing aircraft. The prototype would not be unmarked like the pic above.

I hope it looks like one of these; http://www.automotto.org/entry/designer-renders-russia-s-fifth-generation-stealth-superfighter/

lol you beat me to it...also a video of the taxi tests: Click here

Video of take off, flight and landing itself T-50...
http://video.yandex.ru/users/russianarms/view/3/?autostart=yes#hq

The aircraft resembles the canceled YF-23 more than the F-22A. There are F-22A elements in the vertical and horizontal stabilizers. The YF-23 featured a form of V-tail, without a separate v-stab/h-stab..

YF-23; http://www.nationalmuseum.af.mil/shared/media/photodb/photos/060810-F-1234S-002.jpg