Well, someone is likely to give a better answer than I, but...
I use Adobe RGB for everything I can. It contains more color data than sRGB. I also work in 16 bit as long as possible. If possible I won't convert to 8 bit until I am ready to save for the web.
My normal workflow is to shoot in RAW; edit, retouch etc in 16 bit after converting from RAW; save the image, including all layers (do all correcting on layers so you always have the original to go back to if you need it); resize; sharpen. At his point it depends on what I'm going to do with the image. For printing on my Epson, I set the output to the correct profile for the printer and usually set for perceptual and print. This gives me the closest print to what I see on my screen. For using on the web, I convert to 8 bit, convert to sRGB and then do a Save for Web. This gives an image that will look as close to the same ass possible in various web browsers. (Many of the images you see posted that look kind of flat were saved as Adobe RGB. Save and open in Photoshop and the colors are amazingly better.)
You will find experts who disagree with my preferences. However, from the computer geek's point of view, never throw away data you don't have to. Since Adobe RGD holds more data than sRGB, I use it. I only convert to something else when I have to, but even then I don't convert my original, I convert a copy so I can always go back to an image with all of the data possible.
Hopefully this all made sense. I'm on more than a little codine at the moment.
Dan
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