I used Dream In Color Starry for a Traveling Woman Shawl and LOVEEEEED it! It has actual silver spun throughout the yarn so it's got that nice sparkle but it's no too obnoxious.
http://www.ravelry.com/projects/EvanP/traveling-woman
Ooops didn't see that you were looking for a thicker yarn... I believe the DIC Starry is fingering weight.