Remember that plans are not necessarily "as is." Builders can use a reverse set of plans (sometimes called a mirror image) to better site a house. It's also possible to hire an architect or modification service to personalize a plan. Ask if reproducible prints or electronic CADD files are available for the selected plan. Either will make the alteration process quicker and easier.
There are dozens of other house plan style categories, such as A-Frames, Mission, Contemporary, Southwest, and Tudor to name just a few. A web search for house plans yields a mind blowing number of searchable sites. Most of these allow you to search for house plans, by style, number of bedrooms, baths, with or without a garage, or by sq. ft. of living space.
Another service provided by the companies that design and sell house plans, is one that allows you to estimate the cost for building a particular house in your area of the country. The South is the least expensive area to build in and the West has the highest cost .The national average is somewhere in between.
When you decide on a house plan, you're also choosing a way of life. Do you host dinner parties often, or do you only step inside the dining room on holidays? Today, many families forego a dedicated formal dining room. Instead, a casual eating nook connected to the kitchen accommodates week-night meals, Little League pizza parties and all their entertaining needs. If you work from home or have school-aged children, an office or study may be a necessity. Think about the rooms and how you and your family will use them.