I think the other posts have why 1000 calories is bad covered. If you want to find a target, there are tons of calculators on the net that will give you a ballpark figure for how many calories you likely burn in a day. Cut the number by 500, add some activity and all will be well.
This is one of the several that came up in a quick google search:
http://www.freedieting.com/tools/calorie_calculator.htm
Also, a tip contrary to a previous one: Don't weigh yourself every day, even if it's at the same time. Your weight day-to-day will fluctuate based on a billion different factors. If you see a gain, or no progress day-to-day, psychologically it might have the effect of encouraging you to cut more calories or make other tweaks that are unnecessary or even harmful in the big picture.
I agree with the recommendation to cut diet soda, but I'll admit that I personally drink far too much of the stuff. First, to feed a caffeine addiction (I'm not huge on coffee), second because we still need to set up our water cooler since moving and I'm not a big fan of the stuff out of the tap. Can it if you can, but
I'm not dead yet (wow, a testimonial!). And yeah, I've heard the fearmongering about Aspartame and the rebuttals, and so on. I think the most important thing is avoid artificial sweeteners if you can. They're all chemicals in the end.
Some diet tips:
- One thing I enjoy is an egg in the morning. One, scrambled or however. My wife and I got this stupid little one-egg pan for Christmas that works great for it. That and a cereal with some fibre in it and not a lot of sugar (current favorite: Weetabix) makes for a good start and only about 300 calories.
- Omega-3 fatty acids: try to get it in food if possible, a lot of flax stuff is high in omega-3 and so are fish, etc. Get the omega-3 eggs too. It's good for your heart, it's an anti-inflammatory and always worth making a larger part of your diet.
- Find a natural food that you enjoy snacking on. A veggie if possible. I eat a ton of carrots at work to snack on.
- IMO, focus on cardio first. It's just my opinion, but I think good cardio training is far more important than pumping iron. BIG IMO, I also personally believe that you should focus your lifting workouts more on higher reps than higher weights... but it depends on whether you want to build bulk or just general tone.
- Re eating at night, it appears to be more of a myth:
http://news.bbc.co.uk/2/hi/health/3263249.stm
"Time and again, we've been told that eating late at night should be avoided because it will cause weight gain," said Dr Cameron (note: doctor at Oregon Health and Science University).
"However, there isn't a lot of research to back up this commonly held belief, which may in fact be somewhat of an urban myth.
http://www.goaskalice.columbia.edu/2225.html
One aspect of weight management that is vital to understand is that we gain and lose weight over periods of time weeks, months, years not hour by hour.... There is no magic time after which the body stores fat
Anyhow, just some thoughts out there... I think no matter what you do, it's important to find a balanced approach that is sustainable and you enjoy (or at least don't hate). My goal is to get back to where I was before I got married (or maybe before I met my wife). I'm half-way there and still making progress. I still eat junk food and other stuff that counts among "guilty pleasures," but it's all about moderation, or making sure it fits into the overall picture. I'm also exercising a fair bit, which is crucial (I plateaued for about a month-six weeks because I had a business trip in which I was wined and dined like I've never been before, and had some issues that affected my ability to work out).