Welcome! Let me tell ya', FitDay is the only thing that has worked for me long-term. And if you commit to it, it DOES work, even if you (like myself) are far from perfect.
50 pounds in three months is aggressive, but where you're just starting out, entirely doable if you do your part.
I sure hope you stick around and let us know how you're doing, and don't hesitate to ask should you desire help or advice.
47 M 5'8"
May 4, 2010...... 440? lbs. (Start FitDay Size 60 Jeans)
June 19, 2010.... 393 lbs. (First Weigh-in)
June 19, 2011.... 229 lbs. (164 lbs. gone in one year :-)
Current Weight... 185 lbs. (Size 36 Jeans)
Next Goal 169 lbs. (07/04/12)
Ultimate Goal 165 lbs. (12/31/12)
The best exercises for weight loss are Fork Putdowns and Table Pushaways.