I'm currently dual booting from a 750Gb HDD which will be used as the bulk storage drive when I get an SSD. Given that, how small an SSD can I get away with for both systems? I'm assuming that for Windows the main install will go on one partition and the linux root partition will be on another on the SSD. I'm also assuming the home partition can go on the HDD or will it be better of on the SSD? I'm thinking a 256Gb drive would give me some future expansion but it would be handy to know if I could get away with a 128Gb drive.