I created a video demonstration yesterday of a brief editing session for an EXR high ISO image … specifically a 3200 ISO image from a Roger Daltrey concert.
This video shows the steps starting at double clicking the image in Adobe Bridge to get it into ACR and then proceeding to CS5. It shows how I deal with noise and sharpening at the ACR level, which is generally thought of as capture sharpening. And then how I deal with the final processing for display at 800px.
Anyway, I hope you enjoy it and that it provides something useful for you …