I put together what I believe is a comprehensive list here of the types of arguments you can raise.
see the sections "Truth of Monotheism" and "Evidence of the Soul".
if you know others let me know. though keep in mind that God built the world around free will so it is impossible to completely corner an atheist.
also note that it is a complete waste of time to debate with atheists and may even damage you as the Mesilat Yesharim writes in ch.4
For not only do they lack the [proper] vision to see the truth, to perceive the evil right in front of their eyes, but they also see fit to conjure up great proofs and convincing evidences to support their evil logic and false ideas...
Also note, In order to make this paper comprehensive i also included evidence from controversial sources (ex. seances). This sort of area may infuriate the rationalists out there as can be seen from the comments.