If you are looking at an 04 Expedition, get an 05/06. Same body style but with the 3V 5.4 (more power). I picked up an 05 EB (Eddie Bauer) with leather, nav, heated/cooled seats, etc and 70k miles for under $16k last year. Ford certified used. I'm sure they have come down since then. Pulled my Cobra with the family over the socal grapevine no problem.