Any modeling tutorials?

Anyone know of any good modeling tutorials out there that explain how to model stuff correctly for Gmod and how to import it?

I know a good basic one on ModDB,but it doesn’t cover importing from what I remember.

http://www.moddb.com/tutorials/basic-hl2-modeling-tutorial/2#readarticle

This thread on facepunch is a good start: http://www.facepunch.com/showthread.php?t=939746

Thank you, this link is actually really informative.