You are just right in your packing. I assume you are going for about a week. If anything, I would say another casual wear or two, but that is truly a personal preference kind of thing. You are correct in the fact that most of the time is spent in swimwear. I take 7-8 suits and we stay for 10 - 11 days. The short amount of time you spend in casual and dress wear in the evenings allows you to nicely hang the clothes at the end of the evening and re-wear them if needed.
A little tip if you want it...... I always take several extra T-shirts (nice ones) which I then leave with the guys that work at the resort. I try to take ones that have some connection to where I live....they LOVE them.
Peace, Love, and Respect
CN 2002, COR 2007, CTI 2009, 2010, 2011
CTI June 4-15, 2012