I messed around with the Storm and I was not a fan. I'm not an large fan of blackberry anyhow...

The Omnia apparently has a 50% return rate due to the complexity, but once you get it set up it's rather quick and easy to use. It's like the learning curve of a new computer. The optical mouse is a nice feature. I think I will be going the route of the Omnia. THe one downfall is that there is no 3.5mm jack for headsets without the add-on connector...