newbie totally confused

[PhillyG]

ok i have spent the last two days searching through the posts to find out what i need to add cruise control to my car.. (FOUND IT!) there is a lot of exceptionally good information on here but i am having problems find out out if anyone has had success in finding someone who sells the projector headlights for a 2009 LB. i am also having a hard time seeing what part numbers and how to install fog lights on the car. i really want to do this but everytime i start reading a thread i have to click to another one. forty tabs later i still dont know what i should get! Does anyone on here have a list of the part numbers i would need for a 2009 LB fog light set? Has anyone succeeded in just buying a projector headlight for a 2009? i would rather not mess up my originals by retrofitting. Does anyone on here retrofit and sell the headlights?
hrmm.. looking forward to your answers.