It is a good idea to choose a lot before you select a plan so that you can take advantage of all that the lot has to offer. (Please remember to ask about site costs or have a professional walk the lot before you buy. We would be happy to assist you in finding the right lot).
If your budget is somewhat of a concern to you, it may be good to know that as a general rule in construction, a two-storey is less expensive than a rancher style, due to less roofing and foundation.
Try not to forget about the possibility of resale. Find out what the majority of people like and dislike in a home.