It is really a subjective thing to answer whether or not meat is really good for you. Some may argue that meat offers an abundance of nutrients including protein, iron, B vitamins and zinc, while others, such as vegetarians and vegans, may claim that there is a moral issue about eating other animals and these nutrients can be equally found eating fruits, vegetables, and other forms of vegetation. Meat, it is often argued, can be treated with hormones and other chemicals which can be bad for human consuption, while it is also argued that most fruits and vegetables are grown with pesticides and weak soil. For these reason, buying organic in both cases may be a better alternative, since it is grown more naturally and is free of these chemicals.
Many of the same nutrients found in meat can also be found in fruits, vegetables, and nuts and seeds, although it is recommended that you eat a variety of these foods in order to get an adequate amount of nutrition. Sunflower seeds and pumpkin seeds, for example, are an excellent source of Vitamin E and B vitamins (which are excellent for healthy skin and stabilization of mood) and hazelnuts have iron in them (which help carry oxygen in the blood). Peanuts, of course, also have protein in them, as do almonds, which are another source of calcium. Fruits like oranges, melons, and bananas also contain calcium as well as other minerals.
Depending on genetics and degree of health, certain people may respond better to meat than to others. Some may not find it bothersome at all, while others may find that they feel and look better when they eat more natural vegetation. At the same time, the North American Food Pyramid recommends eating more fruits and vegetables than meat, and so that might suggest that one may find greater health benefits eating more fruits and vegetables and eating meat only sparingly, if at all.
Sources: Food Pyramid:
http://en.wikipedia.org/wiki/Food_guide_pyramid
Sources: some sites on the benefits of seeds, nuts, fruits and vegetables:
http://www.whfoods.com/genpage.php?tname=foodspice&dbid=57
http://www.whfoods.com/genpage.php?tname=foodspice&dbid=82
http://www.vegan.org.nz/nuts.php
http://www.whfoods.com/genpage.php?tname=foodspice&dbid=37
http://www.txfb.org/texasAgriculture/2000/051900melon.htm
http://www.whfoods.com/genpage.php?tname=foodspice&dbid=17