I recently got the s90 and love it. One of the things I was hoping it could do (but I have not figured it out yet) is allow me to take portraits with a shallow depth of field. I am not a "real" photographer so I am not sure how to set up the camera to do this. The Canon website touts the s90's f2.8 to enable this, but what should the other settings be, will I have to use a tripod to reduce shake, etc.? (I do realize it will never be the same as using a DSLR for the same effect!) Thanks for any help!