right guys im getting really in to this training malarky and its taking over my life.i want to start doing a 3 day split on body parts with a few days of cardio a week also.my problem is i dont know where to start like.

monday chest/biceps
tuesday cardio
wednesday triceps/back
thursday rest
friday cardio
saturday legs/abs
sunday rest

my problem is for each of the above i dont know what excercises to be doing apart from the simple ones like bench press ect for my chest.wide grip pull down for the back.i could be doing with some new excerises for each part along with the ones i do just now on my full body workouts.could someone right out a plan and some rep amount they recommend.thanks guys.