I think one issue overlooked is the fact that going with a prime lens rather than a combo lens, you lose a lot of your ability to compose a shot. Sure you can "enlarge" the file (crop and resize) but that loses some of the effective area of the CCD. For instance a 28-70 combo lens (35mm, I'm not good at figuring out digital lenses in mm, sorry!) may only get you a step back to a step forward in framing over a 50mm prime, but sometimes that's enough to keep you from falling into the pool, or backing into some steroid monkey.
Bren R.
