TuttoBiciWeb has the start lists & bib numbers for the Vuelta a España
here.
Sastre's pinned #1. No Voigt, Cancellara, A. Schleck, or F. Schleck for the Vuelta. CSC-Saxo bank is the team with the most nations represented by their riders (Spain, Russia, Denmark, Ukraine, Belarus, the Netherlands, & Argentina). By my count, there will be riders from a total of 23 nations riding in this year's Vuelta. Leipheimer, riding for Astana, is the only rider from the United States in this year's Vuelta.
You can check out the official Vuelta sight at
lavuelta.com.