Before you jump in, a few points to consider:
Have you thought about pollination? Your fruit trees and many of your vegetables need to be pollinated in order to bear crops. In many areas, honey bees are in decline, and you may need to depend on wild and solitary bees. A variety of flowering herbs and ornamentals provide much needed food sources for these bees during the summer months.
Have you thought about pest control? Fruit trees, especially apples, are magnets to a variety of pests that can cause a lot of damage to your crops. There are small, beneficial wasps that are predators to these pests (and do NOT sting humans). Again, they need nectar sources throughout the year. For example, I grow aruncus (goatsbeard), that is not edible but attracts an astonishing variety of these small wasps when it blooms. Dill, parsley, and fennel are also good for this purpose, as well as providing food for humans and butterflies.
Birds eat a lot of insect pests, but they too need other food sources, such as ornamental shrubs that produce berries, and they need cover in trees and evergreens to nest in.
Have you thought about economy of scale? I don't grow corn, because the farmer down the road from me does a great job of it, picks it fresh several times a day, and in season I can buy if for $1.50 a dozen. Same thing with potatoes--they are dirt cheap and quite good at the farmer's market. I do grow peppers, even thought I can also buy them as well, because I like varieties it's hard to find locally. Think about how you want to allocate not just your money, but your time and efforts. I tried for years to grow apples, with limited success. It takes a lot of time and attention to get the disease and pest management scheduled properly. I now buy the bulk of my apples, but my trees are still valuable in that they provide wormy apples that keep the resident groundhog fat and satisfied and out of my vegetable garden. The drops also feed a variety of large wasps in the fall that have been patrolling my vegetables all summer. On the other hand, my Asian pears are a great success. They take little care, the fruit is absolutely delicious, and very expensive at the market.
Consider finding out what types of shrubs and flowers are either native or easy care in your area, that are beneficial to wildlife, and planting some even if they are not directly edible. Your goal should be to create a micro-ecosystem that feeds you as well as the birds and the bees.
And it's ok to grow things just because they are beautiful. We need food for the soul as well as the body.
Good luck with your endeavors, Sue