Am I doing the right thing?

[fortyntrying]

Can you please help me determine if I am doing the right exercise program? I am female, over 40 and 85 lbs over weight.
Here it is for the first 4 weeks:

Monday
Spinning class 1 hour

Tuesday - 30 minute Elliptical level 8
Machine Press - 3 sets, 30 lbs, 12-15 reps
Machine Row - 3 sets, 45 lbs., 12-15 reps
Machine Overhead Press - 3 sets, 20 lbs., 12-15 reps
Machine Leg Press - 3 sets, 120 lbs., 12-15 reps
Machine Leg Curl - 3 sets, 30 lbs., 12-15 reps
Cable Press Down - 3 sets, 35 lbs., 12-15 reps
Preacher Curl - 3 sets, 25 lbs., 12-15 reps
Standing Calf Raise - 3 sets, 30 lbs., 12-15 reps
Ab Machine - 3 sets, 50 lbs., 12-15 reps

Wednesday
Spinning class 1 hour

Thursday - 30 minute Elliptical level 8
Machine Press - 3 sets, 30 lbs, 12-15 reps & 3 sets, 45 lbs, 12-15 reps
Machine Row - 3 sets, 45 lbs., 12-15 reps & 3 sets, 60 lbs, 12-15 reps
Machine Overhead Press - 3 sets, 20 lbs., 12-15 reps & 3 sets, 30 lbs, 12-15 reps
Machine Leg Press - 3 sets, 120 lbs., 12-15 reps & 3 sets, 135 lbs, 12-15 reps
Machine Leg Curl - 3 sets, 30 lbs., 12-15 reps & 3 sets, 40 lbs, 12-15 reps
Cable Press Down - 3 sets, 35 lbs., 12-15 reps & 3 sets, 40 lbs, 12-15 reps
Preacher Curl - 3 sets, 25 lbs., 12-15 reps & 3 sets, 30 lbs, 12-15 reps
Standing Calf Raise - 3 sets, 30 lbs., 12-15 reps & 3 sets, 45 lbs, 12-15 reps
Ab Machine - 3 sets, 50 lbs., 12-15 reps & 3 sets, 65 lbs, 12-15 reps

Friday off

Saturday - Cardio of choice for 45-60 minutes

Sunday - 30 minute Elliptical level 8
Machine Press - 3 sets, 30 lbs, 12-15 reps & 3 sets, 45 lbs, 12-15 reps & 3 sets, 60 lbs, 12-15 reps
Machine Row - 3 sets, 45 lbs., 12-15 reps & 3 sets, 60 lbs, 12-15 reps 3 sets, 75 lbs, 12-15 reps
Machine Overhead Press - 3 sets, 20 lbs., 12-15 reps & 3 sets, 30 lbs, 12-15 reps 3 sets, 40 lbs, 12-15 reps
Machine Leg Press - 3 sets, 120 lbs., 12-15 reps & 3 sets, 135 lbs, 12-15 reps 3 sets, 150 lbs, 12-15 reps
Machine Leg Curl - 3 sets, 30 lbs., 12-15 reps & 3 sets, 40 lbs, 12-15 reps 3 sets, 50 lbs, 12-15 reps
Cable Press Down - 3 sets, 35 lbs., 12-15 reps & 3 sets, 40 lbs, 12-15 reps 3 sets, 45 lbs, 12-15 reps
Preacher Curl - 3 sets, 25 lbs., 12-15 reps & 3 sets, 30 lbs, 12-15 reps 3 sets, 40 lbs, 12-15 reps
Standing Calf Raise - 3 sets, 30 lbs., 12-15 reps & 3 sets, 45 lbs, 12-15 reps 3 sets, 60 lbs, 12-15 reps
Ab Machine - 3 sets, 50 lbs., 12-15 reps & 3 sets, 65 lbs, 12-15 reps 3 sets, 80 lbs, 12-15 reps

Burning about 1,000 - 1,300 calories per weight workout (Tuesday, Thursday & Sunday)
Burning about 600 calories per spinning class

[fortyntrying]

I just started this program. Weeks 4-6 are with free weights. Sounds kinda silly, but I am a bit intimidated by the free weights section at gym as they are all muscle bound guys...

Here is week 4-6 program:
Incline barbell press
Dumbbell fly
Bent-over barbell row
Lat pulldown
Overhead dumbbell press
Dumbbell lateral raise
Barbell curl
Machine preacher curl
Lying barbell extension
Cable pressdown
All 2 or 3 sets of 12-15

[fortyntrying]

OK - you sold me should I finish week 1-3 routine (just finished week 1) or move over to weights now? Did you see edits on original post including personal stats?