This website is used by movies and gaming companys for there model references.
www.3D.sk
This website has alot of good free Textures.
www.cgtextures.com
Good website about questions on 3d max plues they have free models. The forum is quick response just in case your question hasent been answer on our forum
http://www.max-realms.com
Pretty good website to check out has alot of cool stuff (tutorials, textures, model etc.)
http://www.3dxo.com
If you need environment references
http://www.environment-textures.com