Hi I've just started usinng slide film as I'm going travelling in september and wanted to shoot onto something that would enable me to possibly sell some shots when I come back. For day time stuff I'm quite happy with Fuji Velvia 50 (although just trying the new 100) but I need something that will be good for night shots. I've got a tripod and I'll mostly be shooting night skylines and neon. Is it worth investigating tungsten film? I quite like the orangey glow of daylight film in these circumstances but have never tried tungsten. Also is it really necessary to use 400asa? I've heard it can be quite mucky with slide film, would I be better with a slower film. Any recommendations? Thanks in advance for your thoughts.