I decided to take the 360 head on with very little knowledge about how it works. Maybe a mistake, but these things are how we learn what to do and what not to. So. I bought a RROD 360 Premium off of ebay for 60-something. Not important. What IS important is that it came without the RCA video/audio cables, a power supply, and a hard drive. The first two of these I've already bought and they're on their way... they will help me with fixing the RROD (no I will not be doing the towel "trick") How important is the hard drive in backing up and playing backup games on a 360? How necessary is it?