If you're that concered about not being able to afford paying Rogers data rates now it's time to make a choice what your priorities are.
If you can't justify paying the price for a BlackBerry and all the add-ons needs to use it properly, you could also save yourself the whining and get yourself a lower cost phone that doesn't use data.
Sure you WANT a BlackBerry, but if it's not within your means to own one, maybe you should give it up?