Exactly what we did and absolutely loved it, all transport laid on with the excellent bus service between hotel and parks, plus magical express to and from airport. I would go for more than a week though, if affordable for you. We are planning on doing this again as we had such a good time
If you wanted to do the full range of parks (ie Disney and Universal-9 park) you would need closer to £630 per person and that wouldn't include Busch gardens/Sea World. (£3150 total per family of 5) If you wanted the 12 park ticket (to include Disney/Universal/Sea World and Busch Gardens)then this would set you back around £740 per person. (£3700 total for family of 5) If you just wanted to do Disney then you would be looking at around £380 per person. (£1900 total per family of 5) As for spending money whilst you are there (eating,drinking and fuel only) expect to spend anywhere between £2000-£4000+. I guess it depends on how frugal you aim to be. We like to enjoy ourselves whilst away and the rest of the year we can be frugal ! lol. That said, I still try and mix budget eating options with mid-priced dining options and we go through around £3500 for our family of 5 which includes 2 teenagers that are always hungry ! Don't forget the £20 a day car parking fees for the Disney parks if you are driving and staying offsite , these can add up ;) There are ways to get free transportation to the parks but it is a balance of convenience / time I guess. For a family of 5 I'd recommend just paying for the parking. Annual pass holders get free parking and only 1 member of the party needs to have one so if you are someone in your party is planning on visiting more than once in 12months then this is a great way to save on parking charges.
Happiest place on Earth and Epcot is very educational too ;)
As it would be a once in a life time holiday and now thinking due to our child's age that universal wouldn't be suitable now thinking of doing a week just in Disney. Staying on site at Disney. Pre booking food and park tickets and booking flights separately it's coming in at just over £4000 thats giving us £100 a day spending money but does include all our meals
Not cheap, depends on what parks you do and whether you plan to spend on food whilst there. I only did magic kingdom and found the price of food the same as any theme park here but I couldn't do it in a day - each park Need a a good few days so it all adds up. Also get a car!!! We spent about 250 for a week using a chevelot saloon which was fine for us.