I guess cycling to work is out of the question? Very good cardio vascular - I used to cycle 10 miles to work and I was quicker than the bus (and its free). Swimming tones up everything - I used to live across from a beach and would go for a swim a few times a day. Make like Poirot - work out those little grey cells and think what little things you can fit in with your daily routine - even stairs instead of elevators - if the thought is daunting, just tell yourself the lift is a little square tin coffin waiting to plough into the solid ground with you in it :-)
Rowing - now this may sound mean, but instead of a machine we used to take the babysitter to the lake, and he would get his own boat and a head start, and the kids would yell Ram Him!, Ram Him! and pound on the sides of the row boat - and it is more fun than a gym and realy quite inspiring.
I had an attractive friend who swore by Salsa dancing
See, you get the warm up, the weight lifting - and it looks more fun than lifting a weight bar doesnt it?
Try and make it fun, not torture.
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Leto - dont know about green tea, but when I had eating disorder, I would statr the day with half a lemon squeezed into a mug of boiling water - that seems to help.