If you don't need to make the purchase right away, wait for the BB Tour 9630 (formerly Niagara). It is supposed to be available with Verizon by the 13th of July. Lots of speculation that it will be released before that with Telus. Although there is nothing concrete to prove this. It is basically a mix of the Bold, Storm & curve. It will have a qwerty key board with a processor similar to the Storm. The key board is supposed to be the best one yet from BB. Wifi is still up in the air. I find with the unlimited data plan from Telus that wifi isn't really necessary for me personally. I am eligible for a free upgrade and I am waiting for the Tour.
Currently I have a Curve 8330 which is by far the best device I have ever owned. If I were you I would stay away from the Pearl. To me it seems it is geared more towards teenagers instead of business use. The Storm is a complete disaster. I don't know anybody that likes it and I know over a half dozen people that have it. But don't take my word for it. Head to
http://crackberry.com/. You will see many posts and threads from hardcore BB fans who are absolutely disgusted with the Storm. Many of them are salivating over the release of the Tour.
Also somebody else in the thread mentioned the Javelin. I do believe that the next generation of BBs that are coming with optical trackballs. The first of the series will not support 3G, Evdo.