I would look for an '06 personally.. they fixed/upgraded a few minor things like the steering pump pulley, power seat motors (04-05's were slooow), added a left foot rest, and made it so you could unlock the doors from the inside (04-05's you had to hit your keyfob or manually lift the lock like 80's cars). Also an ashtray and lighter were added to the '06s along with lit-up steering controls. In my opinion the tail lights look cooler, too (clear instead of all red).
Not really big deals, but I could see myself getting annoyed at some of those over time.. especially the locks.