[X4U] Browsers for OS X which are "light?"

[zapcat]

We all know the joys (mostly) of Safari and Firefox...fast, loaded  
with features...

but, toward the other end of the feature-laden spectrum, what are the  
more lightweight browser offerings which are good?

by "light" I mean, those which place fewer resource demands on the  
Mac, and therefore faster, more nimble...

on the Linux side, "dillo" comes to mind....is there a dillo  
counterpart for OS X?

thanks!

zc