Actually, those are the Battlefield 2142 and Star Wars editions of the G5, respectively. I don't know why "Star Wars", since there is no single reference to that on the mouse, or even on the box. I currently own one of those (G5 SW edition), and it's a kind of blue-ish grey on the outside and a silver/gray n the middle, with darker grey sprays over it, and the lights are all blue instead of orange (original G5). I find this one much more good looking, but that's a POV.
Oh, and they only have 1 side button, not two. Trust me, I'm looking at mine right now.