I thought it was time to do an upgrade on my aging Macbook Pro (Mid 2010) and decided to go with a dual drive setup removing the superdrive. I planned on having a Samsung SSD 840 Pro as a boot drive for Mountain Lion & Windows 7 and Applications & then installing a HDD and using that as internal storage for documents, music, movies, pictures, etc. However I have some questions regarding the setup. I want to be able to use boot camp with Windows 7 OS, and Mountain Lion OS + apps booting up from the SSD. 1) So how many gigs should I get the SSD 2) How much space for each partition if I want to boot both operating systems and some Apps from each OS on the SSD ? I can only think of downloading the office programs on the windows partition at the moment. 3) I was debating on which HDD to go for I was thinking either one thats Seagate 750GB 7200rpm / Seagate 1TB 5400rpm Suggestions ?