I was wondering which HDD to get. Im leaning towards a 2.5 inch form factor, since those dont need any additional power supply, and when i decide to take out the DVD-Drive, i can mount it internally. But is there something im missing? Is Speed perhaps something i should be looking out for? are 5400 rotations per minute enough to play without hiccups or should i go for 7200 instead? are there any great differences in speed between different models? and are any of them more advisable than others? Im leaning towards the "My Passport Essential 320gb" by Western Digital. This Drive comes with USB 3.0 but should be downward compatible to the USB 2.0 specifications. Are there any known issues with USB 3.0 Hard-drives in conjunction with any USBLoaders? Well... since this Post might be getting a bit hefty now, im gonna stop with the questions. Any Advice/Help/Criticism is needed and wanted. Thank you in Advance!