Pretty easily customizable, a nice menu would be a bonus but as is, its incredible.

I use edsf for arrow movements
and w and r for pageup/pagedown.

Vimkeybindings is excellent, it works 90% of the time
and the few times it doesnt is not the script or the authors fault. Its due to webpages stealing keyboard
focus and other nefarious tricks.

It doesnt work on slashdot.org because slashdot
uses the e and d keys for something else (but I think
that can be turned off)

With this script I rarely need to use my mouse/trackpad