boat for windsurfer

I recommend lessons for windsurfing.  It's a long learning curve and lots are ging for kitesurfing instead as it's quicker to learn.  Don't buy a small board untill you are ready.  It's like putting a non sailer on a skiff to learn.  you will just get disheatened.  Get a high volume board and learn to sail the board first.  Then progress to harness and footstraps.  Ones able to do this you can then think about a smaller board for jumping etc.