Unless you already have a 30gb drive, I don't see the immediate point in getting a 48gb drive to upgrade. Unless you have 48gb worth or music to load at once. I got a 30gb drive, because even if I take a few cd's to work each day, it will still be a good few months before I fill it. Then, the 48gb drives should be way cheaper. (just like the 30gb drives are now compared to when I bought my 20gb drive.)

If you do have GB and GB's of music on a pc, just waiting for a home on your empeg, then buying all the capacity does make sense. IMHO