primer

what primer do you guys like to use??? i am at the point i need to prime my car and finish up any extra body work that pops out....my buddy has some dupli-color primer but you have to add a reducer to it....i dont know anything about this stuff as this is my first body,and paint job.....car will be a street driven car not a 100 % show stopper just want it to be nice....i know nason makes good paint ,looked at the ppg stuff not alot of info on the dupli -color stuff....thanks mike:book: