I'm flying out on Monday. Staying at Lake Buena Vista Resort. They offer free transfer buses to the parks although Uber is uber cheap (pun intended??). The apartment cost me £1800 for two weeks. Disney / Universal tickets were something like £600 for 14 days. Flights were £1100 (fly drive for two) and we're taking £2500 spending money for two.
Not doing Seaworld or Busch, or Discovery Cove, although we're having a day at Clearwater and also seeing Muse whilst we're out there.
It's perfectly doable on a smaller budget and I recommend joining It's Orlando Time on Facebook for great hints, tips and deals.
Forgot to add, we've got one night at Art Of Animation too as we found a cracking deal a few days ago and couldn't resist. Something like £110 for the night reduced from almost £400!