i LOVEEEEEE my blackberry! i started with a pearl but i only had it a couple months since i cancelled with sprint. i'm still on a family plan with my parents and my brother so i got a curve with verizon.. i had the silver one but then got the pink one instead after riley chewed... yeah lol =) i'm probably going to end up getting the storm when it comes out (thank god for working @ best buy). the curve is a LOT lighter than an iphone, i have an itouch so i just carry both of them with me.
for verizon its $30 extra on top of your plan for basic unlimited blackberry data (email, internet, etc) but that doesnt include text messaging. they do have a phone plan though where its unlimited text to anyone with any service which i'm lucky to have since im a txt-a-holic