I can recommend the 'Samaññaphala Sutta: The Fruits of the Contemplative Life' http://www.accesstoinsight.org/tipitaka ... .than.html
It is a long sutta, and alot of the section on virtue could be skimmed through, as it applies more to renunciates (such as monks and nuns) rather than laypeople such as ourselves (although it is interesting to note how the five, eight or ten precepts are all included in it). Only after virtue has been exhaustively explained does it go on to guarding the sense doors, mindfulness in daily activites, contentment with simplicity, abandoning the five hindrances,
and then finally
it goes into the jhanas. And after the jhanas, there's even more...it just gets better and better, all the way to the total destruction of the asavas.
I get the feeling (from this sutta) that jhana involves a whole-life approach; inclining to quietude in all one's activities, avoiding silly entertainments, abstaining from obtrusive music, cultivating brahmacariya, etc. I sense that for many of us laypeople, jhana might be a long-term
cultivation, that will require steady effort, and much patience.