Roachman...welcome to the boards. From San Jose you take the highway back to the airport, but keep going till you see the turn for Atenas. Follow the signs to Jaco, and then follow the signs to Qeapos. It will take you about 2 hours from the airport to Jaco, so about 3 hours to Qeapos. If you need to see a map, clock here, then click on Qeapos for a zoom.
http://centralamerica.com/cr/maps/mapcosta.htmAlso, I highly reccommend Villa Mymosas in Qeapos for your stay there.
Good luck, pura vida. Love em, just don't fall in love with em.