For a year or so I've had a 500Gb Western Digital My Book Pro external drive. This recently died and I returned it to WD under warranty. A new drive is on its way, but from the tracking I can see they're sending me the Studio model as replacement. I think this is because the My Book Pro is discontinued, but I've a feeling I may be given an inferior replacement. The My Book Pro has 2 FW800, 1 FW400 and a USB port, but it looks like the Studio has 2 FW800, a USB and an eSATA (which I don't think is much use to me as I have an MBP.) It's quite difficult to find comparison specs so I'm not sure whether there are other meaningful differences. So I'd appreciate some advice from some of you guys who know about these things. Am I getting a raw deal if I accept the Studio replacement?