Swap mouse buttons? Key bindings?

[Casey Ransberger]

Is there an way to switch out the default mouse button bindings? The default really messes me up for some reason. 

It'd also be really a lot nicer to be able to configure my arrow key chords to do what my hands are used to. Any pointers on where to look for such behavior? I realize this is probably something that most folks just deal with, but after experiencing native editing behavior in Cuis it's hard to want to go back to having to reach all the way over to my function key in order to move to the beginning of the line.