I'm sorry but, after two weeks of D300 ownership (despite a rather limited lens collection (50mm f/1.4, 70-200mm f/2.8, 18-135mm f/3.5-5.6)), and equal tests of all lenses on both cameras, I have to say, especially with the prime, that the notion that the glass matters more than the body is a bit overstated. I'm not the best photographer in the world, but the D300, at, okay, twice the cost of the D80 - or the same as the cost of a Nikkor 24-70mm f/2.8 (which I plan on picking up eventually), -is something like five times the camera. High ISO (800>) shots don't just look normal-ish/weak - they look great. Practically double the continuous shooting rate, the autofocus, etc. etc. etc. And man, the thing really feels built like a tank. To be sure, I'm envious of the 24-70, but man, a camera that's just so much better than the D80 makes me not mind, too much, that I have to hold onto the 18-135 for a while. This is, of course, not to say that the D80 is bad, just that the D300 is that much better. So the next time you're eyeing a really expensive piece of glass which you're leaning towards over a camera body, give that body another look (Nikon, Canon, Pentax, whichever). It really can make all the difference.