Monarch Holidays have a cheap deal to Florida in June 2011 for 1 week.
Four adults can stay in 1 room for £1220.20 or if you require 2 rooms that will be £1426 (including credit card fee).
This includes flights with 20kg checked in luggage , room only accomodation and compact car with basic insurance ( it is usually cheaper to book your own car hire than upgrade).
This price is less than their flight only option and seems to be available for Gatwick and Manchester flights on the 9th/10th and 11th of June 2011.
The price for 2 adults is about £713 including credit card fee.
Quidco offer 5% cashback for Monarch Holidays so could be even cheaper!!