Hey strange question. Companies have been paralleling things to make them better for a while now. i.e. dual & quad core cpu's, 4870x2/gtx295,etc. My question is why dont they do that with hard drives? I understand that there is raid but its not in the same unit. (I also understand that there are raid boxes) I also know that they have produced hd's with dual read/write heads a long time ago. Why cant they take 2 7200rpm sata laptop drives and fit them in a desktop hard drive case with raid and hd controller-board and have it set to run raid automatically from the factory? It seems like a good idea. What am i missing? I also have and would continue to have the traditional raid setup but there would be situations where packing that in one hard drive could be useful.