Awesome theme, idea4IT. I don't know how anyone can not use Monokai for their color scheme.
Anyway, I loved your idea so much I tried making a port myself: http://www.alfredforum.com/topic/1275-an-improved-monokai-theme-dark-semi-minimal/
I completely agree. Vim controls would be wonderful. Perhaps with cmd + j and cmd + k because j and k are already reserved to type the letters j and k.