This is going to be the starting point for absolute beginners -- people new to the MSP430 or perhaps even to microcontrollers in general
If you want to save yourself a lot of trouble -- particularly if you prefer Dead Tree Documentation -- there are two excellent books to get you up to speed quickly on the MSP430:
There is also an excellent tutorial by Gustavo Litovsky. This, along with documentation on the web, may be enough to get many users going.
Some course notes and a syllabus that may be helpful can be found here:
TI's somewhat technical Getting Started page.