youtube breakbeats and electr.

waveform "drifter" http://www.youtube.com/watch?v=FcczyIq23xs (old nu skool breaks)

summer beach waveforms http://www.youtube.com/watch?v=_E6PngNyOMY (found accidentally while searching for waveform "drifter"--not bad)

bonus, not drum and bass (rather, techno-house):

repeat orchestra "springtime" http://www.youtube.com/watch?v=Z9kZtTcBv5E