My first Blackberry I used for a year was a refurbed 8700c from Cingular. What they do is give it a brand new case, screen, etc. but they reuse the computer components and just reset them. It worked fine until it was stolen from my gym locker 5 days ago.
So, I went online I just ordered the pearl refurbed and received it. You can't tell the difference between the refurbed and a new phone. Though I'm thinking I need the curve for the full keyboard that I'm used too so I'll probably return it.
As a tip if you are ordering off AT&T's website, I used promotion code WLS50 at checkout to receive and extra $50 off the price. My pearl came shipped free to my house in 2 days for $10.86 after tax! Can't beat that.