Sites:
http://www.bodybuilding.comhttp://www.t ... orlife.com
EDIT: I used to do kickboxing. Nothing I've tried since has been better in terms of toning. You should look into it. Pilates is another thing I did daily. I had a Winsor Pilates DVD and would work out in my own room. Great for your midsection. Low impact. And makes you very flexible which is always a plus for your sex life.
If you're looking to lose weight you need both cardio and weights. High intensity cardio (running, sprinting, elliptical) every other day and mod-low intensity (i.e. bike, walking, kickboxing). Lift HARD every other day or at least 3 days a week. Not everyday because your muscles need to rest. Check out those sites for weight lifting routines and form.
Your diet is a major part too. If you're gonna starve yourself or eat like crap, then you might as well not begin because you'll gain all the weight back anyway. You have to eat well. 5 small meals a day LOADED with protein and raw, green veggies. No soda, no candy, no unneccesary carbs and sugar because that turns to fat since your body doesn't need it.
I'd also advise joining a gym. Nothing motivates me more than working out in a building filled with hot ripped guys and girls with cute tushes. Then sooner or later, you realize you're one of them.
Good luck. Feel free to hit me up for more specific questions but if you read up on those sites I suggested, you should be all set.