I haven't produced a lot of hip hop / trap, but I am impressed with the small sample pack metro boomin released (http://music.razerzone.com/metroboominsampledrumpack/)

It has a strong, tonal 808 kick, some pretty basic trap snares and hats (but nice sounding), and other interesting percussion sounds.

I'll add another tip. When doing subtractive EQ, I toggle between solo/non-solo modes on the instrument I'm EQing to make sure I like the change with everything added back in. If you do a lot of surgical EQ only in solo mode, you could run into the issue of your track sounding dry and not "glued" together.