Training & Nutrition - I need weight loss help.............

Last year I lost 60lbs by eating 1500 calories a day and working out vigurously. I have gained most of it back but I want to lose it again and keep it off... I know i NEED TO MAKE A LIFESTYLE CHANGE. I heard that if i lose weight fast i will gain it back. I am 6' , 260. Gotta a good amount of muscle because I list 3 days a week. I have started cycling. I need a nutrition plan and calorie goal but I am lost. Please help.

If you want to make a permanent lifestyle change, then putting cycling into your life is a good start. It is better than most other forms of excercise because it can also save you time, money and be useful.
You can use the bike instead of your car to do local trips. You can do most of your shopping on a bike. You can commute to work within a 10mile radius.

If you look on cycling as an enjoyable and useful activity, rather than a hamster wheel, you will probably stick with it for longer than any gym class.
Rather than trying to work out how many calories cycling will burn, try and figure out how many journeys you can do by bike.

www.healthierus.gov, www.nutrition.gov

Good portal to lots of good advice on nutrition, fitness, and health.

I mentioned the only site I am familiar with for calorie counters etc. in the other thread and to tell you the thruth as I don't count calories myself I have only skimmed through the nutrition parts of that site briefly.However my advice on an overall nutrition plan would be to focus on balance and learning what works best for you.Try to eat small frequent meals all containing some lean protein ,unrefined complex carbs ,fruits or vegitables and balanced unrefined fats.Lean protein sources include turkey/chicken breast,certain fish,protein powders,top steak or beans.Good choices of complex carbs include oatmeal,brown rice,whole pasta.Include plenty of vegies of a variety of colors and more fruits emphasizing northern lower glycemic varieties(such as apples pears apricots etc.). You will likely get all the saturated fat you need from the protein choices so for the fat category the goal should be to balance this out with unsaturated fats through nuts,seeds olive oil etc.
On each meal eat according to your planned activity level varying the carbs and total calories (ie more carbs when active less when inactive). The idea ids to eat enough carbs to top your muscle stores but no more or it will be stored as fat.As you weight train you will need fairly high protein intake and the fat you need a consistant but moderate intake focusing on balancing out the types.