I have a stock y510p with the 1TB HDD and 24GB SATA, 8GB RAM, NVidia GT755m x2, Intel i7-4700MQ. I'm looking to upgrade to a SSD but dont know if I should replace the 1TB HDD or the smaller 24GB to a larger volume. I also want to upgrade the to 16GB but not sure of what make and model to use. I like to game and need a strong multi task platform.