Stepping up from my CoolPix S51C to the D300 and after spending some time here I've realized Digital photography and the D300, at this level, is over my head. While I was able to set the camera up using lenses from my F3 and get some decent shots at the beach, the flexibility of this camera is overwhelming yet fascinating. Is the Nikon class worthwhile? I live in the San Francisco Bay Area and the Looking Glass in Berkeley offers some two hour classes. Any suggestions?