I am building a new computer and had a HD question. I have been doing a lot of research and I plan on installing my OS on a SSD agility 3 120GB. I want a large storage drive around 1.5-2TB. I have kinda narrowed it down to the WD caviar black or green 2TB. I have seen benchmarks showing the black is faster then the green but i am curious about real world application just using to store movies, music, pictures and program install files. will i see a noticeable difference between the drives just with loading movies or music. I plan to even install games onto the SSD. I am a big WD fan and have been using there hard drives for many years and trust the brand. Any thoughts would be great.