Very true, just like to add some of the controls on the mid-level camera vs. entry level, the controls have dedicated buttons to adjust them rather than buried in a menu, which makes it A LOT easier when you're in the field to try and experiment different settings or effects. Not a big issue shooting stationary objects, but opportunities are missed fumbling with settings like ISO, white balance, exposure values, etc. Some pros say consider taking three pics of each shot to increase the chance of getting a good shot or burst mode. The beauty of digital is it doesn't cost you anything other that storage space. Also, don't delete what's perceived as a bad pic in the field, it can be saved with post editing like Photoshop.

The other thing is some entry level models omit features and functions that's only found on mid-level and higher cameras. Nikon's entry level DSLRs, D40/40x/60, don't have bracketing. There's an external flash feature missing from the mid-level D80/90.

Another suggestion about lenses as Photog3 mentioned with higher end bodies. Canon and Nikon (or Nikkor, Nikon's other name for their lenses) high end/pro lenses have seals, which a lot of aftermarket lenses lack with similar specs. It's an item that's easily overlooked when look comparing a similar Sigma or Tamara lens to a Canon or Nikon/Nikkor lens (and why they cost twice as much).

Hayn4R,
Feel free to post questions... I'm still playing around with mine trying different settings for different effects. (I wouldn't even consider myself an amatuer photographer, just a beginner.) There are a quite a few members here who have taken excellent pictures and are pro photographers. Photog3 is definately one of them.