my parents are both buying refurbished macbooks, mom wants white and dad wants black. they both will use it for internet and my mom uses iphoto lightly. so is buying the core 2 duo really going to change much? or will the core duo be fine to have a computer lasting them a couple years. my moms ibook g3 is moments away from death so anything new will be faster than what shes used to [: and my dad is switching. finally! thanks for any help.