I have about £300 to spend on a 16:9 screen, for use with a Sony VPL-HS10. What would be my best option? Permanently fixed, mobile? White or grey? Draper and Stewart seem like options, as far as I can tell? Is it better to have it fixed to the wall or ceiling that on a tripod/stand? Also, does anyone know if the projector itself comes with a stand, if you don't want to ceiling mount it?