Canon Powershot S3 IS, what doyou think about this camera 12X optical zoom an a digital zoom, stabilizer, 6 MPX's.

I bow hunt for whitetails an was wondering if this would be a good camera. Most of my shots would be in the 150 yd or less range with the camera. I would make some ofthem into 8X10 if I got some good pics.Would the 12x zoom be enough, thanks for any help, if you want to look at the camera it is on cabelas site under cameras.