I love Pentadactyl (previously Vimperator) for Firefox, but with all these plugins and things, Firefox is really slow. I've tried Vimium, but it's a little awkward and doesn't do all I'd like it to. I've also been playing around with Luakit, because it's in the Ubuntu repositories, and it's fast, lightweight, and has many of the same keybindings. However, I find Luakit doesn't do some of the things Pentadacytl can do.
I'm not a programmer, so I'm a little daunted by having to learn, say, Lua just so I can use a keyboard-centric web browser. Can someone recommend a feature-rich web browser that is still somewhat lightweight (i.e. won't take 10 seconds to start up on my laptop) and yet is not that difficult to configure?