We were considering going to..
Jamaica
St Lucia
Aruba,
We looked at these just using Thomson, we generally stay in the Riu hotel chains (They have lovely ones in those areas) all came in between £2500-3000 for the pair of us all inclusive,
although we ended up going Florida for a week doing a bit of Retail shopping/Excursion type things, and then a 1 week cruise which visited St Maarten, St Thomas & Bahamas.
that came in roughly £2800.