I've gotten lots of laptops from around

From Archive3D, you can get 3ds computers. 
http://archive3d.net/?a=download&id=6898

http://archive3d.net/?a=download&id=2699

http://archive3d.net/?a=download&id=4010

http://archive3d.net/?a=download&id=22314

http://archive3d.net/?a=download&id=5135

Then there's the ones from artist-3d.com

http://artist-3d.com/free_3d_models/03electronics_design.php