Ray Russell - 3 on CBS, one on RCA-Victor, one on Black Lion. From Atilla Zoller-esque on the first two through a very 'out' hybrid of SHarrock, Bailey and Arto Lindsay on the latter, his career trajectory in the 60s and 70s is something to watch. Plus, his writing and group-assembly tactics are something to behold.
I've also been enjoying the first Raymond Boni LP (at least to my knowledge), an album of solo guitar called "L'Oiseau, L'Arbe, Le Beton." Wonderfully warped, yet subtle improvisations, some almost minimalist. LP was on Futura's SON series, and it was reissued on CD by Marge. Don't care as much for his later synth-guitar ramblings, but this is a must for anyone whose solo-guitar tastes run askew.