Thread: Anyone want to critique my workout schedule?

Backround: I'm 5'11.5" and 155lbs at 18 yrs old. This is my third month working out and, as recomended by the PT at my gym, I'm going to cut up and do some muscular endurance.

I'm working out 4 days a week with A and B days. 3 sets of everything. 1st set I'll use a lighter weight to warm up with for 15 reps. 2nd set: 12 reps to failure (max weight). 3rd set: Backto weight from 1st set and do the reps until failure.

If the reps in the 3rd set get above 20 then I'm going to increase weight.

A Days:
5 min warm up followed by stretching
- Chest Flys (free weight)
- Dumbell Chest Press
- Lateral Raises
- Dumbell Shoulder Press (Seated)
- Tricep Extensions
- Tricep Dips
- Hanging leg raises
(On 1 "A" day per week 10-15 min cardio)
5 min cool down

B Days:
5 min warm up followed by stretching
- Walking Lunges
- Squats (On Smith machine)
- Reverse Magnum Flys
- Upright Rows
- Bent-over Barbell Row
- Hammer Curl
- Dumbell Curl
(On 1 "B" day per week 15-18 min cardio)
5 min cool down

Anyone have any suggestions for me? Thanks for the input.

Yeah I thought dumbells were better becuase it used more stabilizer muscles...