First, you need to get into New Vegas. This can be done in a couple of ways. You can get 2000 caps to pass the wealth test (you keep the caps) or you can buy a Passport from Mick & Ralph's for 500 caps (375 with enough barter skill).
Faction Choice
This is the first point in the game you are made aware of the choice you will have to make later: you have to side with Mr House, Yes Man, the NCR or the Legion. You will be alerted about the presence of the quests shortly after you enter the strip, between entering the Lucky 38, and exiting the Tops building.
- Yes Man quests start at Wild Card: Change in Management.
- Mr House quests start at The House Always Wins, I.
- NCR quests start at Things That Go Boom.
- Legion quests start at Render Unto Caesar.
The NCR and Legion infamy will also be reset after completing their initial tasks.
Tops Casino
There are many ways to finish this quest.
- You can speak to Swank at the main desk, and convince him to let you search Benny's Suite.
- You can talk to Benny himself, where you can kill him on the spot, or he will give you the key to the presidential suite and send you up there or accompany you up there.
- You can speak to Yes Man.
If you end up killing Benny, you will get the Platinum Chip. If you don't, you will need to complete a portion of Render Unto Caesar to retrieve the chip.