I have the red blackberry pearl from T-Mobile. Best plan I ever had and the best service too.
The blackberry pearl is very easy to get used to and it is soooooo awesome!! No problems with email or online, it's fast, its small and the keyboard is 2 letters per key...but you just leave it set to autotype and it KNOWS what word you are typing and does it automatically. So, no single/double clicking for letters, kwim? AND, the free blackberry messenger which allows you to IM to any other blackberry owner free!
Best phone I ever had. Once you go blackberry...you never go back!!