I suppose you guys already have heard John Lee Hooker's album "Mr. Lucky"? He features different guests on each track, many coming from outside the blues genre, so it may not be "pure" blues... but it is an awesome CD. Old world blues authenticity with Hooker, some great guitar work, and a very nice recording.
Also if you guys like SRV, you may also like Melvin Taylor and the Slack Band. The disc I have (Dirty Pool) is one of the best sounding recordings I have for my Axioms. He clearly doesn't have the talent of SRV and other greats - and he tries too hard at times - but the sound is very good.