How about some swedish metal – Grand Magus? Fairly old school sabbath like sounds (just slower and heavier and soundgarden type vocals), I like their self titled album the best. Also try King Hobo – awesome band.
How about some old stuff – Steve Marriott's pack of 3, Rory gallagher, Jack Bruce? Or, for those gentle moments, The Incredible String Band? Or, one artist to trump them all, the great, the most underrated, Richard Thompson!!