I am moving from laptop with big hard drive. I don't play game. I don't design requiring Photoshop, adobe.... Basically I use the laptop to program Megapixel surveillance cameras into Video Management softwares. I use several VMS such as Milestone, Exacq.... Debating whether I should spend extra $$$ for the 512 hard drive. This means I have to get the i7. I am thinking of i5 with 256Gb. Purchase $130 128gb Micro SD card to store the softwares. Is this possible? IF yes, what is the negative of this approach? Thanks for your help.