6TB Western Digital SATA 7200RPM 128MB 3.5 Internal Hard Drive Black WD6002FZWX

It's worth it. I've had WD Blue, Red, Green and Black drives, and the Black drives always outlast the others. Better durability, better cooling, much faster, more dependable. The difference in price between the low end Blue and the high end Black is about $20. For the extra $20 you get between two and five years more life than the average consumer level Blue drive. Granted, I tend to move anything I really want to keep onto other drives at about three years because drive failure is typically imminent at three years, but with the black drives I can still get a lot of high speed life out of them.

Solved all our problems with our computer. It is now restored to factory condition and we love it once more. This hard drive is simple to install and really easy to get back up and running. Also, this HD drive increases our capacity to almost double what we had. Luckily, when we bought the computer we did make the factory image discs as advised.