Just got my 1st bb, 8830 with sprint. I love it over my old flip a900 phone.
Sprint promised me they would swat me into the 8330 curve when they get it, its could release today (5/7). Because I'am so new hat this blackberry stuff, I don't know if I'm better off with the curve or the 8830, I am a heavy phone user- 3000 min. a month. HELP
definitely, without a doubt, go with the curve. as far as you being a heavy minute user, are you concerned with battery life? other than that, your only issue regarding minute usage would be what plan youre on - which obviously has nothing to do with what phone youre running.
if youre concerned about battery life, i find that the most important thing with blackberries is to make sure you dont have ten million programs running in the background. (this will also save your memory)
Personally, although I have a Pearl, I had a chance to go to the Curve and hate the keyboard. Between the two keyboards, I actually preferred the 8830 to the Curve, the buttons for some reason felt bigger - and that is why I like the Pearl better - the buttons are bigger.