DwayneHoover
Bluelighter
FUTURE SOUND OF LONDON! Seriously... maybe some 'Liquid' Jungle would be good (chilled and ambient subgenre), purely jungle though, not more up-to-date drum and bass. LTJ Bukem made some wicked tracks.
All great ideas Spllitz... FSOL's I.S.D.N. sounds really awesome tripping, very intricate hallucinogenic sounds - kinda shallow emotionally, but soooo beautiful to the ears, and when tripping your brain fills alot of depth and meaning in.
"Liquid" jungle stuff sounds awesome, and yea, LTJ Bukem is fantastic, great suggestion.
OH! I'll add to that: Luke Vilbert. He's also known as Wagon Christ, and I have VERY outstanding memories of the latter's "Throbbing Pouch" while tripping extremely hard. Search for several full tracks on YouTube
Nightmares On Wax - especially the "Smoker's Delight" album. This record has such a great great flow, and is so trippily laid back yet full of wonderful beats, I really cannot recommend it highly enough, especially letting the whole album play in order front to back, it'll take you on quite a voyage.
Here's some really sweet full tracks if you never heard this classic Trip Hop record (NOTE listen in HQ - 360p - mode for best sound)
NoW - Nights Interlude [Quincy Jones "Summer in the city" ]
http://www.youtube.com/watch?v=Ix5Pjob5jG8&feature=related
Now - Pipe's Honour (beautiful! 8:53)
http://www.youtube.com/watch?v=vLV3ruGp7f8&feature=related
NoW - Stars (very out there... superchilled)
http://www.youtube.com/watch?v=5PI_mQwCT0I&feature=related
NoW - Groove St. (Funky! quite intense)
http://www.youtube.com/watch?v=oj8EMXXk620&feature=related
NoW - Bless My Soul (REALLY GLORIOUS! Let it get going)
http://www.youtube.com/watch?v=i3OLlSaDDBk&feature=related
NoW - Rise
http://www.youtube.com/watch?v=ObpXofD3Vn0&feature=related
This one from NoW's Carboot Soul album has such an intense "Everything's gonna be alright" vibe its just awesone, might be good to help calm someone down if anyone is freakin out on too much acid or shrooms:
Now - Fire in the Middle
http://www.youtube.com/watch?v=G0t8nvFUvqI&feature=related
Now - Ease Jimi (also from Carboot Sol, with some real funky horns)
http://www.youtube.com/watch?v=JEyktxOyWuQ&NR=1
lessee.. this leads us to Amon Tobin (early was known as Cujo)- lots of brilliant stuff.... check out his extensive writeup at Wikipedia:
http://en.wikipedia.org/wiki/Amon_tobin
search YouTube for plenty of full trax:
Sirens (EXTREMELY hallucinogenic!) - http://www.youtube.com/watch?v=KgPzVeGDAH8&feature=related