if youre looking for free models then probably the best place to look would be 3dcafe.com, though I guess the quality isnt going to be too great. Also A|W's website might be worth checking out. If you dont mind paying then try turbosquid.com - theyve got thousands of models to download but you usually have to pay for anything half decent (see the pattern forming here
). lastly you could buy Poser - the app gets slated alot by "l33t" 3dpeople but it has its uses..