Way too over-board on the black. Kind of feels like you're trying to accomplish a gamer-style template. The green starts to give you a head ache after a while as it stands out and draws the eye away from everything else. I think a cool blue would work better, with some other blue highlights through the page, and a few other colours/shades in there too.
Content wise there's not much there, and to be honest kind of makes me think what's the point in this? Is there really a need for yet another script / tutorial / article directory site? Personally I think the navigation needs a lot of work, though I wouldn't say move the login to the bottom.. I'd ditch the Google search bar (after all people can search your site and a few billion others much easier through their browser) and place a login form in-place. Make the navigation clearer, add hover effects, etc. Add a home link. Add some bread crumbs or something to make things all the more simpler for the user.
Not a bad start I guess, needs work though..