Like many others in this thread, I've enjoyed a ton of Orbital. My introduction was when 99x in Atlanta played "The Box" a few times and I picked up a copy of In Sides. Also, like many, I spent many a late night learning to code with some Orbital album as my soundtrack.

So many great tracks listed here and I'll add another: one of my personal favorites is their collaboration with Angelo Badalamenti "Beached" from the 2000 film The Beach.

https://www.youtube.com/watch?v=fBRgfm0osig