LG TU729 Shine

I live in Vancouver and am eligible to upgrade hardware. I currently use SE and would like to move on. I am thinking of the LG Shine or perhaps trying out a blackberry. I am a student who will be obviously getting the eoffice if I get the blackberry. I am planning to do some homework right on the blackberry when I am out or killing time somewhere. However, the data plans here in Canada are crazy with system access fee, 911 (all monthly) fees add ons. Do you think I should just get a Shine or try to the blackberry? Anyone who moved to a blackberry from a normal phone...please give some insights.