I heart my new camera
The best thing about my d50 is that I can start doing shots like this, which I have been dreaming of since I worked at Aussie Rolling Stone in 2002 and Karin Catt took a shot of Incubus doing a similar motion. She had them in front of a blue background, though. I think I'd like to do this on a street in NYC, so you get the stream of cars plus the shape.
We used a handy bic lighter for this.