Wow Minx what a great thread- sorry I missed it! Mind you, it's getting harder and harder to keep up to date with SS threads. Once upon a time, I could log in and read all the new posts on a weekly basis and it would only take me a couple of cuppas .....
In regards to DD, I penned an article a few years back now that you might find useful. It's over at InvestEd under Articles (in the real estate section) Happy reading!