Travel cage for rats??

I am going to be getting two rats soon a male and a female. Once I get them I will imediatelly take them to the vet to get one or maybe both of them fixed. They will probably be there overnight but I'm not sure yet?! Yes, I will talk to the vet about them and she is experienced with rats. Well anyway when i take... show more I am going to be getting two rats soon a male and a female. Once I get them I will imediatelly take them to the vet to get one or maybe both of them fixed. They will probably be there overnight but I'm not sure yet?! Yes, I will talk to the vet about them and she is experienced with rats. Well anyway when i take them to the vet what should type of cage should I take them in?? Also, what should I put in it to make them more comfortable??? Please list links to cages!!
Thanks!!!

P.S. I live in the US so please list only US links!
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