I was thinking of buying a 3 series down the road once I finish my current project. The only AWD 3 series Ive heard of is the 325Xi, are there any other awd bimmers? Is there such thing as a 318Xi or 320Xi?

no.

Funny thing you mentoned this is because at work today a so called "M3" came in today, yet it was a 4 door and has AWD. And it didnt have a M3 motor, ust the wheels, some seat belt covers and the M3 body kit. Other then that it was funny to rag on it.