Cicurcuit training

I've never really followed a plan, but when I first started training I was doing more circuit type of workouts and that worked for me better. I'm going to draw up mini circuits that I'll be incorporating into my current training schedule. I'm going to start tomorrow. The structure for the workouts will be the ones grouped together and not spaced out will be the circuit workout:

Today's workout:

Close grip incline bench press:

35 lbs 12 reps

Repeat 4 X's

Cable cross over:

40 lbs 12 reps

Repeat 5 X's

Reverse curl:

50 lbs 15 reps

Repeat 5 X's

Over head cable extension:

40 lbs 15 reps

Repeat 5 X's

Seated shoulder press machine:

20 lbs 15 reps 

Repeat 5 X's

Cardio:

Treadmill steep incline 30 mins