Recently I started doing a lot of travel planning for my clients and they preferred to not use a travel agent (long story). I found it quite overwhelming until someone recommended the services of Kayak.com Kayak.com is a travel search engine -- not a travel store. Once you find the flight, hotel, car, etc. that you want, you click and link and go directly to the travel provider or travel agency web site.
What I *really* like about their search system is they have an option for "nearby airports" (I know, may others do also) but they make it possible to search several at a time. You can easily change your flight preferences via a menu on the left side of the search result page.
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