have always been a huge fan of brunch but lately wanted to take advantage of Gulp and Browserify (https://github.com/mikew/browserify-brunch doesn't really cut it) so I wrote parched[1] and parched-tasks-webapp[2]
It's a great combo. For a while though, Brunch did very similar things, sourcemaps et al, with very little configuration (which is still very clever when you need it).