Why not Navtech. They worked ok for us. We operate the 747.. .. .<a href="http://www.navtechinc.com/Products/V1Plus.htm" target="_blank">http://www.navtechinc.com/Products/V1Plus.htm</a>. .. .<a href="http://www.navtechinc.com/Products/COMRAD.htm" target="_blank">http://www.navtechinc.com/Products/COMRAD.htm</a>