Man, I can't believe you left the toilet seat up!
I'm kidding. I know your situation very well, once my wife became preggers with our daughter, I gained a bunch of weight. Everyday it's a struggle to drop the weight.
I'm not where I used to be but I have managed to tone a little bit using an exercise program that I can do at my own pace; and playing tennis as often as I can.
The one thing I do when I play is that I push myself to hit as many balls as possible, it's too easy to let a ball go by because you might be a half step too late, you gotta make yourself get there and try! There's the ultimate satisfaction of dripping buckets of sweat after going hard for a couple of hours - the sweat is fat crying.
As far as workouts, try the Spartacus workout: http://www.menshealth.com/mhlists/hi...rcuit-routine/
I do it in a small space and I only commit 30 minutes to this (it's as much as I can do right now). It's tough at first, but like everything else in life, it gets better.
Keep pushing my friend. We're here for you on these boards.