For the starter, here's a few threads I participated in:
http://us.lexusownersclub.com/forums/index...=0&p=342551
and
http://www.clublexus.com/forums/ls400/3248...n-progress.html
You should read this to be sure: http://www.lextreme.com/dx-starter.html, but with the clicks, it's the starter IMO.
Boy, are you in for some fun
Sorry, can't help you with the headlights. Did you try searching?