I hate to say this, but I do tend to agree with Szark. OK you can create an interior scene yourself within Bryce, once you get used to using it, with primitives and boolean operations. However normally for complex interior scenes you would be preparing them in DS and using the bridge to transfer them to Bryce.
Bryce can do many things, has a superior render engine and great lighting set ups now, but it is not a modelling app per se, although Brycers do many things with it that are not mentioned on the box, so to speak. DS is also not a modelling app, but there are a great many more interior scenes available for it in the sotre than there are for Bryce. However with the briudge this need not be a set back, it will just take longer to prepare your scene as you need to set it up in one program and then send it to the other.
If you are starting from scratch then I would tend to say stick with DS for now, until you get used to using 3d software. Then boot Bryce up and have a play with Bryce. The only programs that you may find that are better than Bryce with outdoor scenes will be expensive programs.
Bryce takes a lot of beating