On first inpressions the siteneeds a design for the heading, some kind of logo other than plain black text. The seconf aspect of the front page which I would change would be to have an interactive map, when you roled the mouse over the different continents the colour changed or text colour changed, do this by creating some regions. I am actually planning aholiday so was looking through the site too. Within some sections of the site you are using revolving GIF's these are ok, though look abit early 90's. pop in some flash design make it look slick. The colours are good and you seem to have a few pictures but maybe get some of these on the home page too, holiday deals (what do you want people to look at) use the front page to drive them there e.g. special offers etc.
The technology is there but I think the design could do with some working on. Let me know if you need any help. If you would like help with any flash/graphic design I could do this.
give us an e-mail
dan_bradshaw@hotmail.com