Nah, I disagree. On a Nikon crop sensor (DX) first lens in my mind should be the 35mm F1.8. Gives a better "standard" field of view than the 50mm with will act as 75mm on DX.
Now if you have full frame like my...cough cough...Nikon D3 and D3S, then the 50mm F1.4 is a cracking lens.
Super photography Alex and really subtle processing. Prefer Lightroom 3 and PS CS5 personally, as it suits my workflow better.