Channel4 have no less than 6 competitions here. The closing dates for all of these are given once you've entered, and I think are around the 24th (ish)
A holiday in Florida
Home entertainment system worth £20,000 !!!! ( read the terms and conditions of this one)
2 return flights to Alicante or Malaga
Subscription to the 'fantastic A Place In The Sun magazine'.
20 pairs of tickets to A Place in the Sun Live the exciting new, channel 4 linked overseas property, travel and lifestyle exhibition.http://www.channel4.com/4homes/chatvotewin/index.html
Searched for 'Channel4' and 'Florida' before posting.