Does the cdma version of the Palm Pre allow you to go into the network settings and select the sprint "Power Vision" network and put in a user name and password?

What I am really trying to figure it out is can I buy a used or new palm pre off of ebay that has a clear ESN and use it on my current sprint service without signing a new contract with them? And would I still be able to use my power vision data plan instead of getting one of these everything plans that changes my plan and data service type.

thanks for your insight