i know another build but please helpFollow

um... im lvl 50 now and i dont know what to do... this is my current build:
http://www.wowhead.com/?talent=fheroxMsizfo

i dont really know if its working with me... what do i do? i use dagger cause i love them i had this build pre-50:http://www.wowhead.com/?talent=f0xcZG0Ez0Ez0Mbo

should i just stick with combat one... or does the assasin one get better... another thing is i dont hav good daggers for my lvl so that is an issue for multilate... i want to do max dps and hav good crits please comment


thx in advance