This morning I performed the Hard Drive upgrade and am now the proud owner of a 200gb original Xbox. It was pretty easy although there were a few hurtles to jump. The video tutorial I followed suggested using two Xboxes the second being used to power the second hard drive but this gave me some trouble. Partway through the cloning process the second Xbox powered down. Luckily I had a hard drive enclosure on hand which was perfect for powering the new hard drive.

First thing you need to do is copy some files to your modded Xbox. Then open up the Xbox that you're going to want to upgrade. Once you've powered up and launched the upgrade program you'll want to remove the IDE cable off of the DVD rom and plug it into the new HDD then power it on. Then all you have to do is run the software. After you've cloned the drive you need to lock it and then you're good to go. Easy peazy. I'll be embedding the video tutorial I used. All in all once I got everything going right it only took about 20 minutes to peform the upgrade.