So have you read the stickies?
1. Try to keep your caloric breakdown around these percentages 40% protein, 30% carbs, and 30% fats
2. Try to keep your carbs clean/unprocessed. Whole wheat breads, brown rice, potatoes, whole wheat pastas. You need carbs and protein to develop muscle.
3. Try to keep your fas monounsaturated/polyunsaturated as much as you can. Most people here supplement their diets with fish oil pills and/or flax oil pills because they are essential fatty acids (EFA's)
4. If you are trying to lose weight, find the base number of calories your body needs and subtract 500 from it. That alone should lose you almost a pound a week since 1 pound of fat = about 3500 cals. That combine that with calories burned from exercise, and you should be within the safe range of 1-2 pounds of weight loss per week.
5. If you are trying to do a clean bulk (gain weight), then take your base number of calories and add about 500.
6. Eat 4-6 (a good breakfast is very important) small meals a day to keep your metabolism running strong and efficient.
7. There are two very important times when you will want to feed your body carbs no matter what, breakfast and your post workout meal.
8. No matter how many calories you take in, if you eat crappy food, you will get crappy results.
Is that a little more specific? Also, look at ~LV~'s sticky called "grocery list" (or something like that). It had a great selection of clean foods that gives you a good base of what you should be taking in.