I have been going through a series on the doctrines of grace, yesterday I dealt with “unconditional election.” Some helpful lecture series on Calvinism are:
Art Azurdia: The Doctrines of Grace
A short series dealing with the five points of Calvinism and Q&A, highly recommended.
Curt Daniel: The History and Theology of Calvinism
This is extremely in-depth. For the serious student.