Diane
I will assume you have done your keyword analysis and that the four keywords here are the best of the best for your purposes. If this is correct, then
Your order based on what you wrote would seem to be - The site is a Magazine. It will provide three things: News, Ideas, and Products at good prices. You want the world to know this all by virtue of your home page -
I would start with Title Tag = Holiday News, Holiday Ideas, Holiday Deals | The Holiday Magazine (I am naming it The Holiday Magazine here)
My H1 would be along the lines of The Best Holiday Magazine for News, Party Ideas, and Unannounced Holiday Deals
I would then have a two to three sentence "why" statement with an ordered list of these three News, Ideas, Products with an example and a link (eg. an outbound link to a great or recent travel deal - if you point out one from this Christmas - "Travel Deal Ghost from Christmas Past...2011" - that no one could believe, it would lead people to associate you with that great deal - It must be great and even clever) I would bold or italicize each item on ordered list: Holiday News, Holiday Deals, etc.
I would make sure to use good descriptions in alt text of up to about 140 - 150 characters. (Do not keyword stuff)
I would have a meta description that got people to click through.
I would find several holiday links to acquire and I would link to holiday sites, wiki on Christmas, etc. from your home page (two links).
So there is the quick and dirty. Make sure you remember me at Christmas if this works out for you
Edit: Diane, when I wrote this I had not gone to the link to your site (my bad). Your home page is not a Holiday Magazine as it stands now It is a whole lot of content on cheap travel. When I go to the Holiday page, it is better, but if you are just going to fill it with a ton of travel offers, etc. I do not see how you will rank for Holiday News even with the best structure.