phone advice needed

It is time. My dinky little Nokia cell phone is nearly five years old, and the AT&T bill I get for it every month is just too damn high to justify its abject lack of features like, say, e-mail or a camera or ANYTHING. I need to upgrade.

Now, the debate: Blackberry or iPhone? (Or I can get another, albeit newer, normal phone for free upgrade, which I am also considering because I really don't have money to throw around right now. But that's the wild card in this debate.)

I can get this Blackberry for $9.99. It has all the basic features I need, and it is cheap. On the minus side, it wouldn't also replace my 6-year-old iPod, which I also need to get rid of in the near future.

Or, this iPhone. It's MUCH more expensive -- I'd pay $149.99 -- but has a buttload more features. On the minus side, I hear these things aren't actually all that functional as PHONES, which, um, yes, that.

I'd be more inclined toward the iPhone if it weren't for the vast difference in price. But I haven't actually used either. Any Blackberry and/or iPhone users out there care to weigh in? I tend to hold on to my tech for a very long time -- see: five-year-old crappy Nokia phone and six-year-old iPod -- so once I make this choice, I'm going to stick to it for a WHILE, and I'd like to not make a bad decision.