Thanks all. I hope to make some progress on the furniture soon. LPL is taking up the time
I tell you, though. If I had that lovely house setup, you can be sure I wouldn't be using it to play bloody Clue(do) on! 
Haha yes, it probably won't see much actual Clue time
I see that the first item of furniture to go in is the billiards table - nice to see you've got your priorities straight!

Where did you find those great wood and tile floor patterns?
Some are from online (searched for dollhouse floors), several are Photoshopped starting from a picture of a flooring sample from a DIY site or a picture of parquetry. The side paneling is just a print out I made in Photoshop. The door frames are also a print out, but are mounted on card so they raise out a bit. Basically it's a blend of dimension and the illusion of dimension. I can put the source files online somewhere if there's interest.