Hi,

http://artist-3d.com/

some good free 3d models there

i have tested following 3ds models..they are importable in sweet home 3d and no problems...

[Link removed]

similarly download 3ds models of your choice from

www.allfreeportal.com/imghost/viewer.ph ... itchen.jpg

Enjoy

[Note from moderator: removed direct link to artist-3d.com file since their terms of use don't allow it]