Our flight gets in around 11- so we will have entire afternoon and evening. We are 2 co-workers in our late 20's, early 30's. What would you do? I was thinking we should go to Disney World for day- and then maybe somewhere FUN for dinner? Thoughts?

Disney would be alright, but It's pretty expensive.

Universal Orlando is much les expensive than disney world and is great fun. There is CIty Walk right there also with a lot of wonderful restaurants and clubs.

For adults I would do EPCOT - although in the limited time you have you would have to pick and choose. And Downtown Disney has a host of options for dining/club/fun activities. Just realize that you need to get reservations for everything far in advance - since everyone wants to go to the same places.

I would do Discovery Cove ...

Again, I must agree with nytraveler.

Your time is so very limited, but I vote for EPCOT. If you really want to see the park, eat there rather than at one of the other WDW hotels which will cost you valuable time. Personally, I like Morocco.