Aphex Twin, Monolake, Kaito, Wisp, Murcof, Venetian Snares, S.U.M.O., Kosma, etc.
Personally, I'd love to go to a party where they play techno, deep house, psytrance, jazz, samba, soul in a playful celebrating way.
I'd love to have more singing in psychedelic music, but not the awful new age crap that psytrance clings to. Listen to the first four tunes on Tom Middletons second disc on Sound of the Cosmos, that's a nice mix of vocals, depth and vibe, and no generic ethnic samples ala psytrance. Another good example of deep psychedelic music is James Holdens mix Balance 005.
I wouldn't mind some groovy house music, the 12 hour grooveless zombie stomp of psytrance isn't all that exciting. Something like S.U.M.O's remix compilation Rebounces would be very nice, and lots of celebrating vocals in that one.