Ya, there are a lot of suckie ones... The one that comes with redhat does look good. You can find the windows copy of it by searching for "Matrix Code emulator", sorry but I'm to lazy to look up the link. If you prefer a decent but not great 3D Matrix code thingy, go to http://www.uselesscreations.com
Hey that useless creations one is great! Install it, leave the default settings except unclick every checkbox except forward movement. (Leave the colors and 3D setting) I think I'm gonna donate for this.