[Self Studying to the GRE quesitons]

Hi,

 

I am taking the test in mid of October 2014,

I have couple of questions.

1. I am trying to create a schedule for studying to this test.Does anyone has a recommended schedule or something like this?

2. What about materials? So far I bought the official book of the ESL for taking the GRE, is it enough? I saw over the internet website call "Magoosh"? is it worth something?

3. Is there any particular reason why I should take the Computer test?

 

Thanks for all the answers.

Shiran