Dr. Octagon - Instrumentalyst
Company Flow - Little Johnny From the Hospitul breaks and instrumentals
Portishead instrumentals and/or songs are always pretty good.
Nite Skool Clik EP
Bleep Bloop - "Denial" and the rest of his EP
DJ Shadow - The Private Press
DJ Shadow - Endtroducing
(pretty much anything by DJ Shadow)
DJ Hidden - The Painted Stage
Dj Hidden - Prayers End
not sure what you are looking for, but these are some that I enjoy.