yo,
thoought id mention...
Paul Lamb & The King Snakes,
Nine Below Zero,
The Blues Band (anybody remember paul jones in the kiddies TV show 'uncle jack'? i think thats what it was called)
its probably also worth mentioning Woodie Guthrie, although he's possibly more folk, but still cool.
again, Ry Cooder... Ive also seen Taj Mahal do some good stuff, Connie Lush has a good band, Eric Bibb is a good guitarist! apparently a guitar he has was made from a tree that was struck by lightening! cool story. Catfish Keith is also cool as heck/
go to Colne Rhythm and Blues Festival, and if it still happens, the Blue fest in Burnley.