Check on the GTN for cheap gear you can make as well. Also, you could use Centurion commendations as well as that's pretty quick too.
Went from 25-41 over the weekend on my BH Merc Arsenal, just using Mako all the way. Probably work on gearing up Blizz later when they implement dual spec so I can have a healing spec w/o having to pay to keep switching back and forth