Wait till Storm 2 comes out. Also there are tons of comparison threads out there, however the Storm 2 is gonna have more memory, faster processor, wi-fi, improved screen, etc.
If you are looking at getting a new berry I would wait.
It all depends on what you're looking for. If you want a device with a sweet physical keyboard, the Tour. If you want a touch screen...a Storm. As for a choice between the Storm 1 or 2...
First, can you wait? The rumored release date is 10/25...but who knows...it could be pushed back.
Second, how deep are your pockets. I would guess that the Storm 2 is going to be release around 200 at subsidized pricing. The Storm 1 right now is only 50 dollars.
I love my Storm 1 but can't wait to get the Storm 2 when I can annually upgrade.