There are plenty of shiny-looking cyberpunk terminal emulators out there, but here's one that's actually functional, too. It's called eDEX-UI, and it's based on Tron Legacy.
It's got a bunch of cool features, and you can even make your own themes for it. Later tonight I might make a Grid theme - if anyone's interested, I'll post a link to it if I get around to making it.
For now, here's the terminal itself:
GATO