This is probably one of the best sites ever! No matter how much you want to lose, there's a place for everyone!
I think you're on the right path with exercise. I know I couldn't do SlimFast. I'd be WAY too hungry. I agree with you, eating real food and counting calories is the better way to go...for me, anyway.
A site a lot of people, including myself use is
www.fitday.com You can track your daily intake there and you should be able to customize the SlimFast shake info on the site.
Good luck