I would actually try and stay away from machines and use more free weights or even body weight.
Abs:
1) You should try and do planks, those really hit hurt.
2) Exercise ball (should be pretty firm), lie down on it (mostly with your lower back) with your feet against the wall so your knees are bent to a 90 degree angle and do crunches.
3) I understand what your second ab exercise is. A good one for obliques is using this machine: http://www.theexerciseequipmentstore...line_45hyp.jpg
and lie on your side (if you lie on your right side, have you left foot forward and right leg back (I hope that makes sense)) your right arm dangling down and your left arm on your side. Bend down as far as you can and lift up "crunching" your left side, do 20 each side and you'll feel some pain.
Upper Body:
Where is your back and shoulder workouts?!
1) Instead of regular push ups. Mix it up a bit and use a medicine ball. Do a push up with the ball in one hand roll the ball to your other hand and do another push up with it.
2) You can also use a stepper doing push ups if you don't want to use the medicine ball. You place the stepper in front of you and you just alternate hands each time you do a push up.
3) Do a chest press with free weights instead of a bar
Lower Body:
1) Sumo squats will get your inner thighs and butt oh and quads! You can also do sumo squats with a stepper, just use one step and have one leg on it while you do the squats.
2) Step ups
3) Not sure if I can explain this properly but these will workout your butt and quads. It's a very simple workout, but I find them killer. Find a pole, you can use the cable machine (that's what I've been using) and hold on to it below your chest level. Have your left leg behind your right and then go down as if your sitting on a chair, but go beyond the 90 degree angle (the lower the better) and slowly come up. I usually do this exercise last.
Overall body workouts:
1) Burpees are good for upper and legs.
2) Use a medince ball or even a free weight and have it in one hand while you lie down on a mat with the weight above you (so right above your head). Try and get up with the weight always above your head. You can use your free hand to help you up. Once you're up, try and get back down with the weight still above your head. Hope that makes sense!
Let me know how you with those exercises.
Where are all the materialistic people?!