the rares drop a lot in inferno. i have heard with the new patch, that every elite and boss will drop at least 1 rare if you have 5 neph stacks. legendary drops are few and far between. i have had maybe a handful in 140+ hours of playing. some rare plans for your vendors will drop in inferno as well. i am surprised you have not seen a rare drop at all and you are almost at 60. i see some throughout all difficulties.
fyi ... if you do the first quest in act 4, that gives you 22,500 exp in hell
fyi ... if you do the first quest in act 4, that gives you 22,500 exp in hell