I own a vacation condo that sleeps 6 and is just 200yds to Eagle beach. For more info/photos see my web site at http://www.arubarental.net I know you are a family of five and this maybe suitable for your family.
If you stay at a time share look for one with a kitchen . For example La Cabana units have kitchens I cant speak for others. Meals can run a vacation bill up real quick. Cooking some of your own makes playing at the beach etc more fun when your not trying to go to dinner at a certain time not to mention a lot cheaper. Allinclusive not allways a good deal check to see what you really get for the money.And yes see what there is for the kids to do. A child frendly resort is important
We always stay at the Surf Club. We get the two bedroom, which gives you lots of space and two fold outs (the sofa in the living room as well as the sofa in the lockout). I LOVE the washer and dryer. We were there for two weeks and I only packed 5 outfits for each of us. Next I'll only pack 3, I really didn't need everything. You get a full kitchen that is stocked with everything from pots and pans. to a blender a toaster and measuring spoons. The lazy river is great, and there is a new mall nearby with bowling and all the kids seemed to hang out there, and it's within easy walking distance.