Hi Christine! In weeks two and three I would not suggest using S&H or PS Series because you are going to use them for three weeks straight later in the program. You can use some of CTX though since you will only have that for one week at the very end of the 12 week program.
I mention doing two body parts in an hour session here but you can substitute doing shorter workouts if you like. An hour weight workout was only suggested to meet the posters request for long workouts.
A 30 minute total body would come to about 2 exercises for each major muscle group at about 2 sets of 10 reps per set.
Sampler exercises:
Legs: Squats and lunges
Back: One arm rows and barbell rows
Chest: bench press and fly's
Shoulders: overhead press and lateral raises
Triceps: overhead extensions and kickbacks
Biceps: hammer curls and traditional curls
Abs: reverse crunches and bike maneuver (one minute of each exercise)
A sample workout between weeks two and three is as follows:
4 Day Weight sampler for week two: All workouts should include a warm up and cool down. All exercises "of choice" should be 2 sets of 10 reps.
#1) Standing Legs from Pyramid Lower Body and 4 to 5 Shoulder exercises of your choice.
#2) 4 Back exercises of choice, 4 Chest exercises of choice, 10 minutes of core work.
#3) 4 Bicep exercises of choice, 4 Tricep exercises of choice, plus 5 minutes of ab work.
#4) 6 leg exercises of choice (ie: squats, lunges, inner thigh, outer thigh, deadlifts, and calves), plus one set each of your favorite exercises for upper body group (back, chest, shoulder, bi's tri's) 5 minutes of Ab work.
4 Day Weight sampler for week three:
#1) Leaner legs up through all of legs, then CTX Power Circuit Back and Abs
#2) CTX Chest and CTX Tricep and Abs only from Leaner Legs
#3) CTX Bicep and CTX Shoulders
#4) Pyramid Lower Body plus Abs
If you do not need to lose a lot of weight than monitor your cardio workouts. You may find that 4 days a week is plenty.
take care