Orbital are my favourite.
Their best album in my opinion is In Sides. Takes months to get into but when it starts to click it will never leave you.
Try The Box, Chime, Technologicque Park, Nothing Left, Satan, Beached, Out There Somewhere
Daft Punk - Da Funk, Around the World, anything off the Discovery album.
Chemical Brothers - Star Guitar, Loops of Fury, Hey Boy Hey Girl, The Private Psychedelic Reel
Aphex Twin - On, Windowlicker, Alberto Balsam
I love trance; System F - Out of the Blue, Paul van Dyk - For an Angel, Motorcycle - As the Rush Comes, Armin Van Buuren - In and Out of Love, Three Drives - Greece 2000, Lucid - I Can't Help Myself, Gouryella - Gouryella
Also have a soft spot for Rave - Praga Kahn - Injected with a Poison, SL2 - On a Ragga Tip, Altern-8 - Evapor-8, Utah Saints - Something Good,
boards of canada - roygbiv, dj shadow - stem, chequarboard - skating couple