I travel and got hammered for International Data roaming, there is no plan for email and Rogers suggested that I ask business contacts to text me, or to filter all the email so it doesn't transmit to a BlackBerry...kinda defeats the purpose of having the device.
My solution, I have a TMobile SIM for data which is unlimited $29.99 or $39.99depending on whether you have a BES and I pay an additional $19.99 for International (world) unlimited data roaming. Cheaper than staying with Rogers!!
I kept my Rogers SIM and left a voice plan on it to avoid the cancellation fee, and now I have 300 US Minutes, full data international coverage unlimited and 250 minutes in Canada that are one rate to the US all for under $150 total.