PS3 and upscaling

Finally got my Sony PS3 which I got as a package deal with my Sony 40" LCD W Series Television (nice TV - I'm very pleased with it). Anyway I discovered the PS3 will upscale video to 1080p which I have to try of course. Suzanne Vega never looked so good! Well I have never seen her in the flesh and although there is some debate whether upscaling actually improves the quality of the video, in some cases, I feel it does. certainly there was less noise with Suzanne Vega's concert.