I'm going to get a dwarf hamster, two females. And I was wondering which cage+accessory I should get. Either
this main cage:
http://www.petsmart.com/product/index.jsp?productId=2753062

with this ball:

http://www.petsmart.com/product/index.jsp?productId=2753277&keepsr=0

and this extra cage:
http://www.petsmart.com/product/index.jsp?productId=2754676



OR!

this main cage:
http://www.petsmart.com/product/index.jsp?productId=2754670

with this ball:
http://www.petsmart.com/product/index.jsp?productId=2753353

and this extra cage:
http://www.petsmart.com/product/index.jsp?productId=2752727

or you can mix it up
you can also pick like number 1s cage with number 2s ball and extra. or something. you can mix it up or pick how it is.