This first post is actually in response to a question from a different thread - but I thought it might be a valuable discussion for those people that are debating this question themselves. Unless a person has unlimited funds, he/she has to make trade-offs - so you have to look at what you like to shoot, and go from there. I like to go wide, I shoot mostly handheld, and I really want to do more with low light. You certainly can do a lot with a D300, but the D3/D700 sensor is in a league of its own in terms of low-light performance - plus the bigger photosites are going to be more forgiving when I'm taking what amounts to a quick snapshot. I figured Nikon had to come out with this camera (D700) sooner or later, so I've been mulling over this decision pretty much ever since the D300 launch - but I thought I was going to be waiting another year, to be honest about it. Fortunately for me Nikon decided to be aggressive. I do think the D300 has some advantages over the D700 (not just cost), and a different person could very well decide the D300 is a better fit for him/herself.