I am wanting to start playing tennis.?

I am twenty years old and really would just like to start playing tennis, but I need some advice on a reasonably priced racquet. I am six feet tall, 230 lbs, and considerably strong I suppose. I have a mesomorphic body type so, although I don't really workout, I maintain a decent body shape and as a result my speed has stayed pretty consistent. What racquet should I get considering this? I'm not really looking to shovel out a great deal of money, but I plan on being serious about it.