I whole heartedly second Boris and Earthless. Especially Boris' Flood and the first Earthless full-length which is IMHO more epic than their latest album (and includes a cover of Groundhogs' "Cheery Red" ...!). If you enjoy them, I also recommend checking out:
The Psychic Paramount's Gamelan Into the Mink Supernatural**
**sound quality isn't great --- best listened to on crappy speakers and not headphones).
Greenmachine's Archive Of Rotten Blues
Major Stars' Syntoptikon
Bardo Pond's Yntra
Motorpsycho's Black Hole / Blank Canvas
Comets On Fire's Avatar
White Hill's Heads On Fire
Also, if you want some LONG psych freak-out fodder from Neptune, check out one of the all time greats:
Acid Mothers Temple & The Cosmic Inferno's IAO Chant From The Cosmic Inferno
One track. An hour-long cover of Gong's "Master Builder."
Three really great psych rock releases from this year:
Dead Meadow's Warble Womb
Wooden Shjips' Back To Land
Endless Boogie's Long Island