i started leveling my knight from 40 about when this thread started....im 57 now (should be 60 soon)....skills are only 77/74 xD....anyways...
my places i hunt are : Nargor pirates, Chor Lizards, Apes, Cyclopolis
these are good for your level...i average anywhere from 45k-60k/hr...and usually at least one of them is decent enough on my server...so hopefully will be for you as well ;D

gogo..