Well, thanks so much for all the tips folks. Yes, that Muddy Waters is fantastic. Here's a few of mine - a couple already mentioned:
Just about anything Stevie Ray Vaughan, esp, SACD with Albert King.
Delbert McClinton, Room to Breathe.
Ry Cooder, Jazz
Gillian Welch, The Harrow and the Harvest.
Rickie Lee Jones, Girl at her Volcano.
Jazz at the Pawnshop.
Richard Buckner, Devotion and Doubt.
Asleep at the Wheel, Western Standard Time.
Bobby Womack, The Bravest Man in the Universe
Gloria Estefan, Abriendo Puertas
Garden State Soundtrack (this is good recording/production-wise but I add it because it is simply a great soundtrack album)