having seen Infected Mushgroom a few times, i'm over them, and most other psytrance on psychs. its hard to focus when the fast stuff is on.
these days, its psychedelic ambient, dubwise style, with soul, roots and plenty of tech, not too fast, not too slow.
Shpongle / Simon Postford / Hallucinogen
OTT
Shulman
Entheogenic
Kukan Dub Lagan
Ganja Beats
Dub Side of The Moon
Bill Laswell / Bob Marley Sons of Freedom
old standbys: Miles Davis, Glen Gould, Cocteau Twins, early Dead Can Dance, The Orb, Sun Ra, Can, Tangerine Dream.
good jam bands sometimes nice: Ozric Tentacles, Eat Static, STI, STS9, Acid Mothers Temple, Hawkwind.
freaky goth trips: Nurse With Wound, Lustmord, Current 93, Throbbing Gristle, early Christian Death, ealry Voivod.
for the rescue: live Grateful Dead.