I'd get a Priceline hotel 3* near the airport. These all have free shuttles to/from MCO. I wouldn't go less than 3* because if you do, you may lose the free shuttle AND there is a disgusting La Quinta that is a 2.5 star. (for more info on Priceline bidding, check out
www.biddingfortravel.com). A 3* Priceline hotel near MCO is typically $30-40 per night.
The next morning, I'd either take the free hotel shuttle back to the airport and catch the
DCL bus OR take a private limo from hotel to Port Canaveral. I'd decide which based on number of people travelling (the price break even point is 3 people), any special needs (do I want to pick up a case of soda or water on the way? Limo allows a 15 minute stop at a grocers/Wal-Mart, or whatever), and convenience.
I don't like getting in late the evening before, then waiting for luggage, and having an hour trip to the port area. I find it very easy to go the next morning, and plan to arrive at the port about 10:30 or 11. Never had trouble getting ressies or anything this way. Again, personal choice.....have fun.....