I have owned my D50 for a few months now (what a great camera). Anyway im looking at a new lense purchase and would appreciate any feedback. as well as having the standard kit lense i also own the Tamron 70-300mm zoom. Im thinking a natural progression would be a portrait lense such as the AF Nikkor 50mm f/1.8D as i love taking pics of my 4 year old (over 12000 taken so far so am well rehearsed. Anyway i wont waffle i would just appreciate feedback on your experiences on lenses this one in particular if anyone can help....