Rap metal

Hey does anyone know any good rap metal bands
I dont mean like crappy stuff
Nothing mainstream because I would have most likely heard of them
I mean like good riffs and great drumwork with cool rapping
And google isnt helping for this one much
This question a long-shot? I hope not =s
Thanx

Here's a few that I happen to actually like:

KottonMouth Kings
Reveille
Biohazard
Mindless Self Indulgence (my all time fav, their amazing!)
3rd Strike

LIMP BIZKIT
and LINKIN PARK (BUT L.P is rap-rock)

honestly, slipknot has a few songs where it borderlines rap. I don't know you could try them on for size - spit it out, eyeless... once again this leans way more on the metal end but you could give them a try anyways