As you shop, remember that almost every house plan on HomePlans.com can be customized to meet your exact requirements. Furthermore, take comfort in the fact that there's always an exception to "the rules." Just because the Northwest is known for the aforementioned styles doesn't mean that building, say, a Victorian or colonial house plan is, in any way, out of the question. It all depends on the neighborhood you're building within--what it allows--and what your personal tastes are.
** Please note that some locations may require specific engineering and/or local code adoptions. Be sure to check with your contractor or local building authority to see what is required for your area.