I have this mic and I use it with phantom power with both the DVX and XL2. It doesn't seem to really take a lot of power from the batteries and its as simple as just hooking it up to the camera via XLR and turning phantom power on.
If at all possible, you should have someone booming the mic as close to the talent as possible without getting the mic into the frame. A boompole, shockmount, and high quality 25' + 50' XLR cables would be a good start.
The mic is very sensitive to loud sounds. Get a -20bd in-line attenuator from Shure. You'll be happy to have it with the DVX100a. Otherwise, you'll find the volume settings very unforgiving. Great mic...have used it for years.