You could start by going through the docs/tutorials that come with maya. You could also subscribe to SM and go through all the video tutorials. As far as books go, try Maya Fundamentals by Jim Lammers which will get you up and running in no time. Maya Saavy 4.5 is good also. You can get them at any major book store (online or walk-in)...barnes and noble, amazon, etc.
"Terminat Bora Diem, Terminal Auctor opus."