You can stay at the Boardwalk apartments. They have facilities for windsurfers and kitesurfers. There is a kiteshop, Cabrinha dealer, if you need a kite. This complex is located across the road of Marroit, so you can walk to Fishersman hut, but I recommend you to book a car.
You can also contact Armando, if he has an appartment for you. check
http://www.kitesurfingaruba.com" onclick="window.open(this.href);return false; for details.
When I'm there, I kite in the morning from 8:00- 10:30 and then after lunch we go to Boca for some steady wind.
Bring a 11m, the wind is 14-28 knots.
Good winds.