P90X - Which Equipment to buy?

[Assequins]

Hello guys,

I'm going to start P90X, but I need to buy the equipament first, I'm just not that sure which one is the best for what I wanna do..

So, I'm going to buy:
- Chin Up Bar (I can't use screws, I live in a rent house) ->

- Push Up Bar -> ()
- Resistance Bands -> ()

Are this the best choices?

Hugs

P.S: I'm sorry for the long links