First you need to cut back your calories - aim for 1200 to 1500 calories per day... DO NOT go below 1200 calories, your body will go into starvation mode and you wont lose any weight.
Then you need to develop an exercise routine that includes BOTH cardio and strength training. For cardio you should aim for at LEAST 30 mintues 3 times per week.
For Strength you should try 3 days per week also, and alternate between Upper body (arms), Lower body (legs) and core (abs/back) strength training. You can do all three each time you do strength training, or focus on ONE group each day.
But remember you should always have a day of rest in between strength training, and YES you can do strength training the same days you do cardio, in fact you should do strength first, and then your cardio so you get the maximum calorie burn from your workout!
Also, Sparkpeople(.com) is a great website with tons of resources and articles. And a community of people who are trying to lose weight just like you (i'm on there) and best of all its absolutely FREE! You should check it out!
Good luck

weight watchers - you can do it together, it's better if you do do it together, and it's a new way of life rather than a diet, it will teach you the way to get thin and stay thin by altering your eating habits for life - you have the support of each other and the meetings for reinforcement, and once you reach your goals and maintain them for a certain amount of time, you become lifetime members and no longer have to pay. it's a great system as long as you give it a fair chance and understand it's not a quick fix. best of luck!

1) Keep it simple first
here's 2 articles on eating healthy -
http://lose-quick-weight.blogspot.com/20...
http://diets-and-exercise.blogspot.com/2...
AND steps for fat loss success
http://bestways-to-losebellyfat.blogspot...
2) Eat steam food, vegetables, fruits, lean meat
http://bestways-to-losebellyfat.blogspot...
3) drink plenty of water and green tea
4) Avoid junk food, snacks and soda drinks
5) have 5-6 healthy meals a day (1 plate size only) to keep the tummy
satisfied
If you're not too sure on how to plan it, try this link
http://www.squidoo.com/fatloss4idiotsrev...
6) exercise - combine weights, cardio and body weight exercises.
here's a review link to a worthwhile workout, turbulence training
http://www.squidoo.com/turbulencetrainin...
body weight exercises -
http://bestways-to-losebellyfat.blogspot...
http://lose-quick-weight.blogspot.com/20...
For abs, read these 2 blogs (great articles on abs) -
http://thetruthaboutsixpackabs.blogspot....
http://www.squidoo.com/thetruthabout-six...
A good article to preparing yourself to lose weight-
http://bestways-to-losebellyfat.blogspot...
For Thighs -
http://lose-quick-weight.blogspot.com/20...
For Man Boobs
http://diets-and-exercise.blogspot.com/2...
7) form a support group - invite friends, relatives, parents, partners
to participate in a healthy lifestyle, and keep you accountable. This
is important.
8) plan to lose weight slowly, and progressively overtime increase your
goals!
9) Be prepared to make lifestyle changes!
Hope it helps

Learning to eat well and exercise is the only solution to long-term weight loss. We offer the following tips to help you lose weight to look better, feel better, and live a healthier life. Check out http://use-weightloss.blogspot.com/ for all info regarding weight loss.

In Canada, try Herbal Magic. It's more of a life style program.

It is a lot easier when you are both trying to lose weight. My wife and I lost weight together, I lost 100 lbs and she lost 44 lbs as well. We used a program called Shapeworks, it was simple to follow and we bought into the wholesale membership to save a little money while doing so. Here is the website we went to...www.loseweightnow.com/tfward
Good luck to you and yours!

Kyant gave you a great list! He has a fantastic list of links, I'll add one to his point about finding a support group: try http://www.weightcircles.com, great community for healthy weight loss.