The first annular solar eclipse to occur in some 18 years is happening Sunday, May 20, 2012. The total portions of the eclipse will be visible on the Pacific coasts, but areas in the western United States and other areas will enjoy a partial eclipse.
The annular version of a solar eclipse is where the moon covers just the center portion of the sun, and a think ring of light shines around it. About 5% of the sun's light still shows.
For our part of the world, we will see only a partial eclipse and it will begin just about an hour before sunset.
As you can see in the animated image here, by the time sunset comes around, the shadow is just beginning to hit our area. But most residents in the area will be able to see at least a portion of it. Travel west that weekend and you'll get a much longer eclipse and perhaps even see totality if you go far enough west.