Once you import the raw file into photoshop, you can save it however you want at whatever JPEG quality you want. I would save the original file in a lossless format like .psd or .tif and only save JPEGS if you are using it for the web or emailing. The size of the JPEG also depends on the ammount of detail in the photo. A brick wall will be a bigger file than a blue sky at the same compression ratio.

Kort Kramer - Kramer Kreations