Shadows in the Warp
If you need anymore information on the setting, I would suggest you look at http://wh40k.lexicanum.com/wiki/Main_Page. If you are interested in the 4 Chaos gods and their daemonic servants you can visit here: http://wh40k.lexicanum.com/wiki/Gods_of_Chaos#.UkuXtoakrMs and http://wh40k.lexicanum.com/wiki/Daemon#.UkuXoYakrMs.
I am willing to work with people during character creation to help them make their characters, as well as to help you better understand the rules. I will also be available for helping pick out equipment and talents that work best for the character they are trying to create.
Because Paul only has the core rulebook, and there are a lot more weapons and options available in the 3 other books (Tome of Blood, Tome of Excess, & Tome of Fate), I would suggest waiting on selecting your gear until game day.