From:  Mike (MIKE1138)

not that MOI isn´t a great piece of software, and I personally haven´t done any architectural designing with MOI, but from just a quick glimpse at your visualization I can tell you that you definitely want to look into the free version of Sketchup. Combine that free version of Sketchup with the free version of Doublecad XT, and you have a pretty much very useful package for simple modeling. Sketchup models are imported very quickly into DCad, and you can then very quickly generate layouts and dimensioned views and sections.

MOI is way more versatile for creating mechanical things, and I love the more organic approach you can take with it, but it´s something completely different to what I as an architect would actually use for day to day work.