Jazz/blues guitarist suggestions for SRV fan.

Try Melvin Taylor, very versatile; I think he's much better than Stevie Ray Vaughan.

You may want to check out a few of the following:
Ron Affif Trio/ Ringside
Jean Paul Bourelly/ Rock the Cathartic Spirits
Larry Coryell/ Lady Coryell/ Cause and Effect
Bill Frisell/ Blues Dream/ Gone Like a Train
Danny Gatton/ Cruising Deuces
Jackie King/ Moon Magic
Larry Koonse/ Americana
Richie Kotzen/ Electric Joy
The Mermen/ Food for Other Fish/ A Glorious Lethal Euphoria
Tony Purrone/ Electric Poetry
Blues Saraceno/ Plaid
Steve Topping/ Time and Distance

A little less safe:
C.A.B. 2
David Fiuczynski/ Amandala
Gambale-Smith-Hamm/ Show Me What You Can Do
Groon/ Refusal to Comply
Hellborg-Lane-Sipe/ Personae
Scott Henderson/ Vital Tech Tones
Praxis/ Metatron
Quazi/ Cookies of Discontent
Greg Howe/ Introspection
Harriet Tubman/ Prototype

Just got back from this year's Jazzfest in NOLA. Saw John Mooney & Bluesianna for the second time now, this time in a club. He stays a bit closer to the bluesy side of the blues-rock continuum, more so than SRV, but just as hard driving. Anyone who likes SRV would would definitely dig Mooney live, just amazing, muscular guitar work.
Can't comment on his cds tho since I don't own any yet, could be worth checking out a recent one. Don't miss him if he plays near you....
Another guy who blew me away a number of years ago when he was playing with Mayall was Coco Montoya. I got his first cd & it was disappointing, however he has released several since then, maybe better?
I'm always happy when listening to those ancient Peter Green/Fleetwood Mac tunes. I have the originals but, to me, his good stuff is dispersed over several albums from the very first to the final "Green Manalishi". Perhaps there's a particularly good compilation featuring his fretwork. He had a real nice take on blues playing.
On the jazz side I'm liking Russell Malone these days.

Popa Chubby, Tab Benoit.

chris whitley~ livin w/the law - blues via a national steel
catherine wheel~ anything from these guys rock
mike johnson~ ex lead from dinasour jr.