|If you are asking "will having a 1TB hard drive make my computer slower than a smaller hard drive?" the answer is probably not. If you find that you are doing a lot of hard drive intensive work, and that is bottle-necking your system, you can look into setting up a RAID array with multiple 1TB disks to increase speed.|
Whether or not you need a BLuRay drive is completely up to you. At this point, the only major use for a BluRay reader is to be able to play BluRay movies on your computer. A BluRay burner is only needed if oyu want to make BluRay disks. I recently got a BluRay reader for ~$100. Burners will be several hundred dollars.
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