Looking at replacing my 2x2GB Ram (4GB) to a Crucial 8GB - £60 or 16GB - £120. More towards a 16GB to prevent any regrets. Also looking at replacing my 500GB HDD for a Crucial 480SSD. I see there are options of taking out the disk drive and piggy back one in there instead of replacing the HDD or even running 2x SSDs. But then I don't like the thought of loosing the disc drive and having to buy and carry external drive if need be. What's the best and recommended config? Keep 500GB HDD and getting a 128GB SSD or just replacing the entire 500GB HDD? I'm more towards swapping out the entire drive for an SSD so the whole MBP runs 480GB SSD and be done with it but that's £200 where as a 128GB is £57, 240GB is £100. How would a second drive work, (in this case a SSD) in the place of the disk drive? Do you have to choose a drive each time it is being used and boot times/ tasking, how would this improve if you have an HDD and a SSD?