we are going to get the 4 park Orlando Flexticket when we go in April/May 2007 which gives you unlimited entry for Seaworld, Universal, Islands of Adventure and Wet'n'Wild for 14 days from first use. We also have 3 days at WDW left on our tickets from last time, and will use that as well. We have never taken our children anywhere except WDW and Seaworld, as we felt they were too young, and we didn't have enough time (this will be our first 2 week trip). I haven't been to Wet'n'Wild since I was in my late teens or very early twenties, but I really liked it, and my kids love the water, so I think it will be a big hit. The 4 park ticket seems like a good deal - around $150 per child and under $200 per adult, and we can come and go as we wish.
We also have never had much time for shopping, and are looking forward to hitting the outlet malls as well as possibly the Mall at Millenia, which we saw from the outside and looks very upscale and nice.
When I was younger, my family and I went to the beaches, both on the Gulf side and other side, and they are very nice if you like the ocean. What I remember is that on the non-Gulf side, the waves can get really high, which is fun big kids who are strong swimmers, but maybe not so great for small children.
We also stay offsite in a villa which gives us lots of room to relax and our own pool and hot tub, so we hope to have time just to lie in the sun and play with our kids in the pool.