In order to get a great workout in, in less than an hour, including cardio, try this:
Bench press to rear arm raises to Lat pulldown, with no rest between exercises and 3-4 circuts.
Squat or lunges to incline dumbell press to leg extention to leg curl, with no rest between exercises and 3-4 circuts.
Bicep curl to tricep extention to sit-up (or variation of), again with no rest and for 3-4 circuts.
If you do this aggressively I guarentee your heart-rate will be plenty high for cardio endurance. The advantage is each excersice is followed by one that works a new muscle while at the same time stretching the one you just worked. I typically am done is less than an hour and have a complete workout from head to toe. Since every major group is used I only do it twice a week with great results.
Bench press to rear arm raises to Lat pulldown, with no rest between exercises and 3-4 circuts.
Squat or lunges to incline dumbell press to leg extention to leg curl, with no rest between exercises and 3-4 circuts.
Bicep curl to tricep extention to sit-up (or variation of), again with no rest and for 3-4 circuts.
If you do this aggressively I guarentee your heart-rate will be plenty high for cardio endurance. The advantage is each excersice is followed by one that works a new muscle while at the same time stretching the one you just worked. I typically am done is less than an hour and have a complete workout from head to toe. Since every major group is used I only do it twice a week with great results.