Here's an old school jungle track:
Adam F - Circles. It features a traditional Amen break percussion and 808 bass melody line. Great stuff for chilling or for motivation to do house work. The deep bass doesn't start till later in the song, so be patient.
In a similar vein, another of my all-time favorite jungle tracks is
Aquasky - Opaque. Again, the Amen break is the source of the drums, and the 808 bass handles the melody. This chart doesn't dig as deep as Circles, but it's still a great one to savor while you empty your mind.
Last one for today is the
DJ Aphrodite Remix of "I Got 5 On It" by Luniz. Like Opaque, the track doesn't plumb the depths of the subwoofer range, but I include it as a part of the soundtrack of my life. This mix is a bit less mellow than the previous two, yet still worthy of inclusion in the same playlist for its Amen rhythm track and bass-driven melody. As an historical artifact, this dub serves as an example of a precursor to the dissonant edge employed by more modern dubstep, while still maintaining enough modal consonance not to be judged as experimental. Think of it as a bit of seasoning for your meal.