Godspeedyoublackemperor
A Silver Mount Zion
Stars of the lid
Labradford
Explosions in the sky
Would probably appeal for the Mogwai part of you.
Arvo Part
Steve Reich
Terry Reilly
Henryk Górecki
For some Modern "classical/minimalism" type stuff.
Philip Jeck
William Basinski (the disintegration tapes)
Oval (94 Diskont)
For "what the **** is that it is beautiful?" moments.
Edit, oh and Gavin Bryars' "The sinking of the Titanic/Jesus' blood never failed me yet".