I am looking for some home design software that will help me design a new house. I need some thing that will help me design as much as possible, right down to the plumbing if possible and then generate a materials list for price estimation. I have done a search here and found Punch Home Design but I can't figure out if it will do what I need or just help me remodel and landscape. I have been playing with Google Sketchup as well but it doesn't really do enough for me. I have seen plenty of apps for windows but would like to keep this on this on my mac. Any ideas?