You just need to learn the "proper" way of setting down the Storm!
Set down the Mic end first and then just flop it down on it's back. Not sure what OS you're on, but the later OS's are also less sensitive to the tilting while setting the phone down.
Like many others and myself have said in other threads, having the option to lock the phone in one view or the other and setting a convenience key to rotate the screen manually would be a huge plus. I'm hoping that someone (because I doubt RIM will ever address this) can figure out a way to do this. I know I would pay a premium for an app that could do this.