RE: my routine
The cardio would be a great idea to lose some excess lbs. Recent studies show that slow, long cardio sessions are better at burning fat than anaerobic training. If you are looking to burn stored fat that is the way to go.
If youre not aching the day after your workout its probably because your body has adapted to your workout. Modifying your sets/reps and changing your weights accordingly will help to continuously work the muscles, pushing them to new frontiers. Eg)2 months doing 5 sets at 8-12 reps moderate weight (60%max) followed by 2 months doing 3 sets of 3-5 reps (75-95%max).