Great guide...its inspired me to go from my current 120GB to a 250GB so I dont have to keep deleting the downloaded demo's my 5 year old likes to make room for copying games from dvd to hard drive!
Apparently there is almost no difference in load times between a 5200rpm and 7200rpm drive on the 360 from what i have read, so the faster drive would offer you no real benefit.
Indeed, USB is going to be your limiting factor here. Although USB is rated for 480Mb/s, its a shared medium with some overhead. A fast USB host (and we dont know if the xbox 360 is really that fast on the USB side) can only manage a single 40MB/s transfer rate and I've rarely seen even speedy USB external drives go north of 25-27MB/s. I've tested the same drives on an internal SATA connection and gotten 75-100MB/s+, so USB is really a lot slower.
Most any laptop size drive made in the last ~5 years will do much better than 25MB/s transfer regardless of rotation speed. The original Xbox 360 20GB drive probably wont though.
So I'd recommend the lowest spindle speed you can get for this application. Less noise, less heat, about the same speed.
One question for the group:
I have an official microsoft 20GB drive from my original launch date 360. I've replaced that with an official 120GB unit that came with a transfer cable. That transfer was real straight forward.
I just bought the recommended scorpio blue 250GB. My plan is to replace the 20GB drive with that and use the 20GB drives case, and then copy all the save data from my 120GB to the 250.
Given that I have a computer that can take sata drives and boot from usb, and I have two 'official' drives and cases, that I'd like to preserve the 120GB drive in its case as a backup, and dont care about the 20GB drive, what is the fastest/best/easiest way for me to proceed?
I figured I could do the tutorial to change the 20GB into the 250GB, then use the microsoft transfer cable to move everything from the 120GB to the 250GB? Is that the best route for me? At what point in the tutorial would I stop following the instructions and go to the transfer cable program?
Or am I best off using the tutorial straight through and skipping the transfer cable and its software?
Thanks in advance for any advice.