I drove up to San Francisco last night for An Evening With J.H. Williams at the Cartoon Art Museum. This was part of their 25 years of Sandman show that runs through April 27. If you get an opportunity to stop in, there’s some wonderful work hanging there including every original art part from Sandman Overture #1.
Also, if you ever get the opportunity to meet J.H. Williams, I highly recommend that as well. Very cool guy with lots of interesting stories to tell about working with Alan Moore and Neil Gaiman.