What books to buy?

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         Hey all!

         I aspire to become a great Ruby as well as Rails developer. 
But what books should I buy?

         01 
<http://www.amazon.com/exec/obidos/tg/detail/-/0974514055/ref=ord_cart_shr/102-8499224-6872917?%5Fencoding=UTF8&m=ATVPDKIKX0DER&v=glance>Programming 
Ruby: The Pragmatic Programmers' Guide, Second Edition
         02 
<http://www.amazon.com/exec/obidos/tg/detail/-/097669400X/ref=ord_cart_shr/102-8499224-6872917?%5Fencoding=UTF8&m=ATVPDKIKX0DER&v=glance>Agile 
Web Development with Rails: A Pragmatic Guide (Pragmatic Programmers)
         03 
<http://www.amazon.com/exec/obidos/tg/detail/-/0596101325/ref=ord_cart_shr/102-8499224-6872917?%5Fencoding=UTF8&m=ATVPDKIKX0DER&v=glance>Ruby 
on Rails: Up and Running
         04 
<http://www.amazon.com/exec/obidos/tg/detail/-/0596527314/ref=ord_cart_shr/102-8499224-6872917?%5Fencoding=UTF8&m=ATVPDKIKX0DER&v=glance>Rails 
Cookbook (Cookbooks (O'Reilly))
         05 
<http://www.amazon.com/exec/obidos/tg/detail/-/0596523696/ref=ord_cart_shr/102-8499224-6872917?%5Fencoding=UTF8&m=ATVPDKIKX0DER&v=glance>Ruby 
Cookbook (Cookbooks (O'Reilly))

         Is this a good mixture? For instance, with 02, do I really 
need 03? Or with 03, do I really need 02? Please give me your input 
guys. I don't have too much money to spend.

Thanks,
Kyrre