Gayle, Lakefront property typically holds its value over the years because there is only a limited amount available. With the current Bankers Market I feel there is no need to rush. Until lenders loosen their requirements there will continue to be several properties available in every price range.
I do suggest starting to investigate lakes in the area(s) you're interested in living on. Expect all lakes to have some level of pollution, including mercury from the air. The website below may have some information that will help you choose the right lake for you.