It really depends on the size home you want and which model/features. Do you know which one you're interested in? Highland has an excellent reputation in that community. It's one of the communities I'm taking my clients to look at this weekend. Legend is also a good builder. $320's or thereabouts is where it's starting but really depends on the size, features, lot selection and model.
btw...Realtor's often get incentives for their clients and/or help with negotiations etc... all along the way. Please let me know I can help or you want to meet me over there to take a look.