Seems to me there was a thread a while ago called "Favourite Blues Artists" or something similar. Try searching for the thread; there are many suggestions. If you're not sure of the CD, ask to listen to it in the store; many place will let you do this. Blues has such a wide range of styles, it's difficult to recommend something. Muddy Waters is usually assocviated with the elctric Chicago Blues even though he was born and raised in the Delta. Try other chocago blues artists like Howlin' Wolf, Willie Dixon, etc. Also B.B. King is pretty accessible blues. If you want hear some of the real roots of this music you'll have to listen to older artists and recordings: Robert Johnson, Son House, Missisippi John Hurt, Blind Willie McTell. But beware, the recording quality isn't always great and it's somewhat of an acquired taste (like good scotch). As I said earlier, try to listen before you buy.

Dave T