I have the slightly earlier model, the Blackberry Curve 8310.
Perfect for what I need from a phone.
I run 2 email accounts on it, take quality photos, browse the internet, text and calls. It also came with a PC > Phone lead which connects to a BlackBerry desktop manager software package for playing with your app's, backing up and quickly taking pictures off (although you can just email them to yourself).
You can also download BlackBerry app world for plenty of free/buy applications. I run a quality free 7 day weather app which updates every 1hr. Quite useful to be honest.
I'm with O2, 1000 texts, 800 minutes for £32 a month on contract.