French tax on US income

Dear members,
I am thinking of moving to Europe. My US taxable income comes from a couple of deferred income plans, deferred stock awards and stock and bond dividend income. I am looking for a guide that will help answer my questions about assuming a foreign residency and possible dual citizenship. I understand that an American expat must pay an effective tax rate equal to the higher tax rate but I am wondering if this includes retirement and passive income. I am essentially looking for an excellent tax –guide to retiring overseas that can clarify all these questions. Has anyone found such a guide?

Thanks for your advice, any help would be greatly appreciated! Michael from Dubai