Check out this post I made (I'm pretty sure the same settings apply for AutoCAD 2007): http://www.cadtutor.net/forum/showthread.php?t=35688
Also, create a CAMERA for your view. The reason is so you can set the camera to a Perspective view. The view you have right now is called an Orthographic view, which does not represent for depth perception, making it look more "fake".
Before you get into the advanced rendering, learn to place lights around the object. If not then create a really good natural lighting by simply typing SUNPROPERTIES and turn the sun on. There's a setting in this Palette called Sky Properties, turn this on as well as it will add to the "realism".
Hope this helps.