That's a good place to start but there are tons and tons of blues artists out there in a lot of different styles and tastes. Sounds like you're a blues-rock guy so I would add maybe The Yardbirds, John Mayall, Joe Bonamassa, Kenny Wayne Shepherd and some early Johnny Lang. Here are a few of my favorites (I tend to like the early blues a great deal) :

John Lee Hooker
Johnny Winter
Z.Z. Top (you have to check out some of their straight blues pieces)
Muddy Waters
Son House
Blind Willie McTell
Robert Johnson
Elmore James
Lightnin' Hopkins
Howlin' Wolf
Buddy Guy


and the list goes on and on...

The nice thing about the blues is that one artist leads to another to another...

Good luck.