Looking for some interview advice

[WichitaDM]

So i have my first job interview on Monday and having never had a real professional interview im not sure who to expect.

I just finished my masters degree and have not worked in roughly three years due to poker. I am interviewing for a financial analyst position. So basically im wanting to know:

-What types of questions will they be asking?
-What do i need to take to the interview?
-I have a Hit and Run - fixed object that i got from sliding off the road into some landscaping and abandoning my undriveable car until the next day. When i went to get my car towed the next morning it had been impounded etc. I wasnt even aware i was supposed to phone in this kind of an accident. How do i explain this?
-I have hardly any references except a college professor here or there. If this comes up what are my options?
-If my work gap comes up how should i answer? Simply saying i wanted to focus on school might look bad since i only got a 3.2.