Yeah, the vague tech specs, according to the promo website, are basically off-the shelf parts you can buy today from Intel and ATI/AMD (although surely they'll use the latest versions of each component when it's released).

lol Yeah, that is pretty big. Keep in mind that Abrams himself has admitted to over exaggerating the size of things (heh, heh) in actual shown footage, so a lot of what we watched wasn't probably much larger a scale than in canon. For reference, watch Cloverfield. The size of the monster changes dramatically…

According to the BluRay, from stem to stern, the Narada was 9.3km.