This looks good, though I don't know much about this particular bag style. The leather looks gorgeous, though, and seller has good feedback on Balenciaga sales.
http://cgi.ebay.com/06-Authentic-Ba...1QQihZ006QQcategoryZ63852QQrdZ1QQcmdZViewItem
http://cgi.ebay.com/06-Authentic-Ba...1QQihZ006QQcategoryZ63852QQrdZ1QQcmdZViewItem