I have to say my normal advice for a beginner is to go to your local big box discount sporting goods store, pick out a racquet that feels good, and as long as it doesn't feel too cheaply made, buy it, and string it with the most basic synthetic gut. Not polys like Luxilon Big Banger, or Hurricane Tour despite what anybody says. You will not appreciate those strings until you have learned how to play, and they may hurt you if you aren't swinging properly. If the racquet comes prestrung, even better (though prestrung racquets are notoriuously badly strung).
If it's not prestrung, just get it strung with some cheap synthetic that might be on sale at the mid point of the recommended tension for the frame you choose, then go out and play some tennis. If you find you like the sport, and begin to progress, and you start to come to some conclusion about what you like and don't like about the racquet and string, then start looking in to players racquets, and being more specific about what you are looking for. You can start to move the tension up and down to get to where you like it.
Right now you are a big piece of unmolded, untouched clay. How can you shape something to fit that? You can't, at least until you have some idea of what you are going to be?